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.
O scion of the Bharata dynasty, he who, being free from delusion, knows Me the supreme Person thus, he is all-knowing and adores Me with his whole being.OPEN VERSE
O sinless one, this most secret scripture has thus been uttered by Me. Understanding this, one becomes wise and has his duties fulfilled, O scion of the Bharata dynasty.OPEN VERSE