René Guénon (November 15, 1886 – January 7, 1951), also known as Shaykh `Abd al-Wahid Yahya was a French author and intellectual who remains an influential figure in the domain of metaphysics, having written on topics ranging from metaphysics, sacred science and traditional studies to symbolism and initiation.

In his writings, he proposes either "to expose directly some aspects of Eastern metaphysical doctrines", these doctrines being defined by him as of "universal character", or "to adapt these same doctrines for Western readers while keeping strictly faithful to their spirit"; he only endorsed the act of "handing down" these Eastern doctrines, while reiterating their "non - personal character". He wrote and published in French and his works have been translated into more than twenty languages.

René Guénon was born in Blois, a city in central France approximately 100 miles (~ 160 km) from Paris. Guénon, like most Frenchmen of the time, was born into a Roman Catholic family. Little is known of his family, although it appears that his father was an architect. By 1904, Guénon was living as a student in Paris, where his studies focused on mathematics and philosophy. He was known as a brilliant student, notably in mathematics, in spite of his poor health.

As a young student in Paris, Guénon observed and became involved with the occultist milieux of the city, some of which were, at that time, under the supervision of Papus. Under the name "Tau Palingenius" Guénon became the founder and main contributor of a periodical review, La Gnose ("Gnosis"), writing articles for it until 1922. From his incursions into the French occultist and pseudo - masonic orders, he despaired of the possibility of ever gathering these diverse and often ill - assorted doctrines into a "stable edifice". In his book The Reign of Quantity and the Signs of the Times he also pointed out what he saw as the intellectual vacuity of the French occultist movement, which, he wrote, was utterly insignificant, and more importantly, had been compromised by the infiltration of certain individuals of questionable motives and integrity.

Around this time (according to indications reproduced by his biographer P. Chacornac), it is likely that René Guénon became acquainted with Hinduism, specifically via the initiatic lineage of Shankarâchârya, as well as with Taoism. He was also initiated in 1911 into Sufism, where he obtained the name Sheikh `Abd al-Wahid Yahya. His initiation into Sufism was effected by Ivan Aguéli (Abdul Hadi) and performed in accordance with Sheikh Abder Rahman Elish El-Kebir, an important representative of Islam in Egypt at that time, in both its exoteric (outward) and esoteric aspects. Sheikh Abder Rahman Elish El-Kebir was the head of the Maleki Madh'hab (one of the major lineages of Islamic jurisprudence) at Al-Azhar University in Cairo. Guénon later dedicated his book The Symbolism of the Cross to him.

In 1917, Guénon began a one year stay at Setif, Algeria, teaching philosophy to college students. After World War I, he left teaching to dedicate his energies to writing; his first book, Introduction to the Study of the Hindu Doctrines, was published in 1921. From 1925 Guénon became a contributor to a review edited by P. Chacornac, Le Voile d’Isis ("The Veil of Isis"); after 1935 and under Guénon's influence, this periodical became known as Les Etudes Traditionnelles ("Traditional Studies").

Although the exposition of Hindu doctrines to European audiences had already been attempted in piecemeal fashion at that time by many orientalists, Guénon’s Introduction to the Study of the Hindu Doctrines advanced its subject in a uniquely insightful manner, by referring to the concepts of metaphysics and Tradition in their most general sense, which Guénon precisely defined, along with the necessary distinctions and definitions of seemingly unambiguous terms such as religion, tradition, exoterism, esoterism and theology. Guénon explained that his purpose was not to describe all aspects of Hinduism, but to give the necessary intellectual foundation for a proper understanding of its spirit. The book also stands as a harsh condemnation of works presented by certain other European writers about Hinduism and Tradition in general; according to Guénon, such writers had lacked any profound understanding of their subject matter and of its implications. The book also contains a critical analysis of the political intrusions of the British Empire into the subject of Hinduism (and India itself) through Madame Blavatsky’s theosophism.

Also in 1921, Guénon debuted a series of articles in the French Revue de Philosophie, which, along with some supplements, led to the book Theosophism: History of a Pseudo - Religion. During the decade 1920 - 1930, Guénon began to acquire a broader public reputation, and his work was noted by various intellectual and artistic figures both within and outside of Paris. At this time also were published some of his books explaining the "intellectual divide" between the East and West, and the peculiar nature, according to him, of modern civilization: Crisis of the Modern World, East and West. In 1927 was published the second major doctrinal book of his works: Man and His Becoming according to the Vedânta, and in 1929, Spiritual Authority and Temporal Power. The last book listed offers a general explanation of what Guénon saw as the fundamental differences between "sacerdotal" (priestly or sacred) and "royal" (governmental) powers, along with the negative consequences arising from the usurpation of the prerogatives of the latter with regard to the former. From these considerations, René Guénon traces to its source the origin of the modern deviation, which, according to him, is to be found in the destruction of the Templar order in 1314.

In 1930, Guénon left Paris for Cairo, with the aim of gathering and translating written documents of islamic esoterism. This project was abruptly abandoned after a decision of his editor. Left alone in Cairo, Guénon declined all propositions by his friends that he return to France. Despite his declining financial condition, Guénon relentlessly corresponded with his counterparts from many countries around the world as well as continuing his own writing projects. Although remaining in Egypt certainly exposed Guénon to the cultural ambience of Sufism and ancient esotericism for which he had already demonstrated a strong affinity, his refusal to return to Europe created undoubted hardship for him. As if in compensation for this hardship, Guénon was fortunate enough to meet Sheikh Salama Hassan ar-radi, founder of the Hamidiya Shadhiliya sufi order, which he soon joined. Guénon accompanied the Sheikh until the latter's death in 1938. Around the same time, Guénon also met another Sufi, Sheikh Mohammad Ibrahim, whose daughter he married in 1934. This marriage resulted in four children, the last (Abdel Wahed) born in 1951. During his lengthy sojourn in Egypt, René Guénon carried on an austere and simple life, entirely dedicated to his writings and spiritual development. In 1949, he obtained Egyptian citizenship.

Urged on by some of his friends and collaborators, Guénon agreed to establish a new Masonic lodge in France founded upon his "Traditional" ideals, purified of what he saw as the inauthentic accretions which so bedeviled other lodges he had encountered during his early years in Paris. This lodge was called La Grande triade ("The Great Triad"), a name inspired by the title of one of Guénon's books. The first founders of the lodge, however, separated a few years after its inception. Nevertheless, this lodge, belonging to the Grande Loge de France, remains active today.

René Guénon died on January 7, 1951; it is reported that his final word was "Allah" ("God").

Guénon's writings encompass a wide range of metaphysical themes, yet these works as whole evince a unity and organic coherence which Guénon always saw as a critical part of his work. As a result, each topic is integrally related to many others.

In 1921, Guénon published an Introduction to the Study of the Hindu Doctrines. His goal, as he writes it, is an attempt at presenting to westerners eastern metaphysics and spirituality as they are understood and thought by easterners themselves, while pointing at what René Guénon describes as all the erroneous interpretations and misunderstandings of western orientalism and "neospiritualism" (for the latter, notably the proponents of Madame Blavatsky’s theosophism). Right from that time, he presents a rigorous understanding, not only of Hindu doctrines, but also of eastern metaphysics in general. He managed to expose these doctrines to a western public viewed by him as quite unprepared and unreceptive as a whole. He departed from standard scholarship (orientalist) terminology and methods and preferred to expose the doctrines as a simple "easterner", devoid of what he called "western prejudices". For one of the most famous aspects of René Guénon's work is the irreducible difference he describes between the East and the West. René Guénon defines eastern metaphysics and intellectuality as of "universal nature", that "opens possibilities of conception which are truly beyond any limitation". His work comprises:

• An exposition of fundamental metaphysical principles: Introduction to the Study of the Hindu Doctrines which contains the general definition of the term "tradition" as Guénon defines it, Man and His Becoming according to the Vedânta, The Symbolism of the Cross, The Multiple States of Being, The Metaphysical Principles of the Infinitesimal Calculus, Oriental Metaphysics.
• Studies in symbolism (comprising many articles he wrote for the journal Le Voile d’Isis which became later known under the name Etudes Traditionnelles). These studies in symbolism were later compiled by Michel Valsan in the posthumous book Symbols of Sacred Science. The studies The Great Triad, Traditional Forms & Cosmic Cycles, Insights into Islamic Esoterism & Taoism and The King of the World (alternately translated as Lord of the World) are also mostly about symbolism.
• Fundamental studies related to Initiation, a subject completely re-exposited by Guenon from the traditional perspective: Perspectives on Initiation, Initiation and Spiritual Realization, The Esoterism of Dante.
• Criticism of the modern world and of "neospiritualism": East and West, The Crisis of the Modern World, Spiritual Authority and Temporal Power, Theosophy: History of a Pseudo - Religion, The Spiritist Fallacy and The Reign of Quantity & the Signs of the Times, the latter book being often considered as his masterpiece as an explanation of the modern world from the traditional perspective.
• Various studies in esoterism: Saint Bernard, Insights into Christian Esoterism, Studies in Freemasonry and Compagnonnage, Studies in Hinduism etc.

This partition is not strict and Guénon's works display a coherence and unity making each book integrally related to the others. From that perspective, and according to René Guénon's own words, his work is completely unrelated to any particular philosophical system. He identifies the main difference between profane and sacred knowledge: the former ignores the notion of realization ("moksha" or "delivrance" in the Hindu doctrines), while the latter provides effective means for realizing the Supreme Principle (through initiation, mantra or dhikr recitation, orthodox spiritual lineages).

Guénon defines the modern world as being a degeneration of what he calls "the traditional world". According to him, the real separation between the East and West comes from this degeneration; in other words, it comes from an intellectual standpoint, and is not related to any geographical distinction, but to a doctrinal divergence. Amidst the global period of intellectual confusion and disorder that characterizes modernity according to René Guénon, the East has maintained alive, through uninterrupted spiritual lineages, an intellectual (possibly hidden) elite fully conscious of the original wisdom transmitted to humanity from time immemorial. In some of his books, he states that the present condition of humanity can be explained by the traditional doctrine of "cosmic cycles", as it is described in Hindu doctrines.

He produced a series of articles and books aimed at explaining the modern civilization according to traditional data and, more generally, to the "traditional standpoint". He therein denounces what he calls the "pseudo - initiation", which was, according to him, spreading since the end of the 19th century. He intends to denounce, through a careful examination of the historical origin, the ideological evolution taken by what he calls their "pseudo - doctrines", some "pseudo - spiritual" organisations which, according to him, expose to the West false eastern doctrines or which are counterfeits of regular initiatic traditions (among these "pseudo - spiritual associations" he makes a particular mention of the Theosophical Society founded by Madame Blavatsky in the wake of the modern pseudo - Rosicrucian organisations of the late 19th century).

Guénon exposits a view of Metaphysics which can, according to him "by no means be reduced to scientific or philosophical conceptions" but which is instead "the knowledge (...) of the principles of universal order" ; being "absolutely illimited", Metaphysics "cannot be defined". Metaphysics is seen, according to him, in its etymological sense, while recalling that sense in his books. Such a metaphysics, being by essence beyond any contingency, is necessarily at the source of all orthodox traditions, these latter being considered as direct derivations of the great "primordial tradition" (corresponding to the Hindu notion of Sanātana Dharma, or Manu law).

Metaphysics is not introduced by René Guénon as a branch of philosophy, as it is in western studies. Traditional metaphysics, which is, according to Guénon, beyond any contingency (knowledge of universal principles), lies at the very source of all orthodox and legitimate traditions, making a connection between the heart of these traditions and a unique spiritual origin, the "Primordial Tradition". The study of traditional metaphysics and its relationship with our state of existence, i.e. our world, clears the path inwardly towards the center common and shared by each authentic religion: exoterism bounds an "outside" accessible to everyone, its purpose is to maintain the link with Supreme Principle.

However, the current state of the West, characterized by its voluntary and gradual detachment from his own tradition, Christianity, and the degeneration of major branches of one of his last initiatic organization, freemasonry, makes a restoration somewhat unlikely feasible given that this situation is the result of a long evolution through Western history, which according Guénon, follows even a predetermined plan. Incidentally, in the esoteric domain, René Guénon says that two dates mark historically the fundamental spiritual degeneration of the West: first, the destruction of the Order of the Knight Templars in 1314, which defines precisely what René Guénon called "modern deviation", and the Treaty of Westphalia in 1648 which severed, in the historical and "outer realm", the link between West and what René Guénon defined as the "Supreme Centre".

At multiple occasions in his books, René Guénon insisted that the most important, in metaphysics, was properly inexpressible:

[...] it should be agreed, for not altering the truth by a partial, restrictive or systematized exposition, to keep always the part of the inexpressible, i.e. the part which cannot be emprisonned in any form, and which, metaphysically, is really what matters most, we can even say that represents the most essential part [...]

According to the doctrine exposed by Guénon, the "spiritual realisation" leads to the effective identification with the states of being that are superior to our transitory human state, and ultimately to the "Supreme Identity" with the Supreme Principle or Absolute Reality. He firmly states the necessity of being fastened to an authentic and living tradition which has kept alive and made available the initiations that were existing in that tradition since its inception. Such living traditions (such as Hinduism, Islam, or Taoism) are characterized by an inspiration (ex. the Vedas), or a revelation (ex. the Qur'an). He insists on the notion of "intellectual intuition" (supra - rational or spiritual), "awakened" by concentration and meditation on symbols, either in visual form (yantras) or auditive (mantras or, in Islam, dhikr).