Integral yoga refers to the process of the union of all the parts of one's being with the Divine, and the transmutation of all of their jarring elements into a harmonious state of higher divine consciousness and existence.
He describes the nature and practice of integral yoga in his opus The Synthesis of Yoga. As the title of that work indicates, his integral yoga is a yoga of synthesis, intended to harmonize the paths of karma, jnana, and bhakti yoga as described in the Bhagavad Gita.
It can also be considered a synthesis between Vedanta and Tantra, and even between Eastern and Western approaches to spirituality.
Web : http://en.wikipedia.org/wiki/Integral_yoga