This interpretation of perennial philosophy (Sanatana-dharma) by Aldous Huxley is one of my favorite reads from the subject of Philosophy. When I first read it , I realized that it does not take understanding of Quantum Physics and Neurosciences to know the reality. Consciousness , herself has the ability to realize herself through an intuitive knowledge. The Perennial Philosophy, as realized by the subjective experiences of many mystics , in different religious traditions , offers a universal metaphysical framework that transcends individual world views. It emphasizes the interconnectedness of all life and things in the Universe and promotes a path of self-realization and divine unity, offering a profound alternative to the materialistic and action-oriented philosophies that dominate modern thought. Here it is : "The Introduction to the Bhagavad Gita by Aldous Huxley (The Introduction is in the Translation of Bhagavad-Gita by Swami Prabhavananda and Christopher Isherwood.) ...