Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Integral psychology, in the adaptation of Sri Aurobindo''s spiritual teachings, refers to an understanding of the various planes and parts of being, which is essential to the practice of integral yoga. Sri Aurobindo never used the term "Integral Psychology"; the term was coined in the 1940s by Indra Sen, a devotee of Sri Aurobindo and the Mother, who established the field of Integral Psychology, based on Sri Aurobindo''s teachings, although his book of the same name only appeared in 1986.