They who, having taken refuge in Me, strive for deliverance from old age and death know Brahma(The absolute), the whole embodied souls, and the entire field of Karma(action) as well as My Integral being, comprising the field of matter, Brahma and the unmanifest Divinity dwelling in the heart of all beings as their witness. And they who, possessed of a steadfast mind, know thus even at the hour of death, they too know Me alone.

But those men of virtuous deeds, whose sins have come to an end, being freed from delusion in the shape of pairs of opposites born of attraction and repulsion, worship Me with a firm resolve in every way.

[Shlok 27, Adhyay 7]

O valiant Arjuna, through delusion in the shape of pairs of opposites (such as pleasure and pain) born of desire and aversion, all living creatures in this world are falling a prey to infatuation.

Shlok 26, Adhyay 7

Arjuna, I know all beings, past as well as present, nay, even those that are yet to come; but none, devoid of faith and devotion, knows Me.