In his book The Garland of Letters, he expounds the “non-dual” Advaita philosophy of Shakti worship, describing the evolution of the universe from the One Supreme Consciousness. When energy is fully potential, it is indistinguishably One with Consciousness; when it becomes kinetic, its manifestations are known. The Mahānirvāṇatantraṃ, which he translated from the original Sanskrit, contains sophisticated discussions on the nature of sadhana, puja, mantra, yantra, yajna, japa, tapas, nyasa, even the chakras, the five sheaths, the kinds of Samadhi, and the attainment of siddhi. The Ṣaṭcakra-nirūpaṇa is a translation of the description of and the investigation into the “Six Centers” in the body. It is impossible to measure the vast influence that Sir John Woodroffe had on humanity. We do know that he greatly influenced our Swamiji, and for that, let us all bow in gratitude.