Studies in Hinduism consists of articles published posthumously, to which has been added Rene Guenon's separate study, Eastern Metaphysics, the text of a lecture delivered at the Sorbonne. In this work Guenon completes his presentation of Hindu metaphysics, which he considered the most primordial and comprehensive body of spiritual teaching possessed by the human race, one capable of throwing light upon and illuminating the essence of every other Tradition. Of special interest are three chapters on various aspects of tantra-a doctrine profoundly misunderstood in the contemporary West-which Hindu authorities consider the spirituality most appropriate to the Kali Yuga, as well as a chapter on the sanatana dharma, the Hindu concept closest to the ancient and medieval Christian idea of the philosophia perennis, which led St Augustine to declare that Christianity has always existed, but only came to be so called after the coming of Christ. Included are extensive reviews of books on Sri Ramakrishna, Sri Ramana Maharshi, Swami Vivekananda, Sri Aurobindo Ghose, Rabindranath Tagore, Mircea Eliade, Paul Brunton, and others, as well as 40 pages of reviews of books and articles by Ananda K.
Coomaraswamy. Leading Indian thinkers have called Guenon the most authentic expositor of Hindu metaphysics in any Western language.