The book presents the essentials of Advaita Vedanta in simple language using easy to understand analogies. Advaita Vedanta is the ancient, secretive, esoteric philosophy of India which explains the true nature of Reality, God and the world. Some of the topics it discusses are: the Ultimate Reality called Brahman; Nirguna Brahman and Saguna Brahman (Transcendental Brahman and Personal God); Atman or the individual soul; the relationship between Brahman and Atman; the illusory nature of the world; Maya or the illusive creative power of God; Maya and creation; different theories about creation; Pramanas or sources of valid knowledge; Asti, Bhati & Priya aspects of Brahman; Nama and Rupa (name and form) aspects of this world; the four states of existence-Sushupti (deep sleep state), Swapna (dream state), Jagrat (waking state) & Turiya (the fourth state identical with Transcendental Brahman);the antiquity of Advaita Vedanta and its well-known teachers, etc. It also discusses how to experience the Ultimate Reality by developing a purified mind. A whole chapter is used to explain the meaning of the expression "pure mind."