The fifteenth chapter of the Bhagavad Gita is Purushottama Yoga. In Sanskrit, Purusha means the All-pervading God, and Purushottam means the timeless & transcendental aspect of God. Krishna reveals that the purpose of this Transcendental knowledge of the God is to detach ourselves from the bondage of the material world and to understand Krishna as the Supreme Divine Personality, who is the eternal controller and sustainer of the world. One who understands this Ultimate Truth surrenders to Him and engages in His devotional service.
It is verily a part of Mine which, becoming the eternal individual soul in the region of living beings, draws (to itself) the organs which have the mind as their sixth, and which abide in Nature.OPEN VERSE
When the master leaves it and even when he assumes a body, he departs taking these, as wind (carries away) odours from their receptacles.OPEN VERSE
This one enjoys the objects by presiding over the ear, eyes, skin and tongue as also the nose and the mind.OPEN VERSE
Persons who are diversely deluded do not see it even when it is leaving or residing (in this body), or experiencing, or in association with the qualities. Those with the eye of knowledge see.OPEN VERSE
And the yogis who are diligent see this one as existing in themselves. The non-discriminating ones who lack self-control do not see this one-though (they be) diligent.OPEN VERSE