The commentary of Shankara on the Gita is regarded as an outstanding specimen of Indian scholarship. The translator has accomplished his task in a most praiseworthy manner by giving a faithful translation, without in any way detracting from the strength or clarity of the original commentary.
The whole universe is one in the Atman. That Atman when it appears behind the universe is called God. The same Atman when it appears behind this little universe, the body, is the soul. This very soul, therefore, is the Atman in us.
-Swami Vivekananda