BG 10.15-17
Thyself indeed knowest Thyself by Thyself, O Purushottama; Source of beings, Lord of beings, Shining One of Shining Ones, Ruler of the world! Deign to tell without reserve of Thine own divine glories, by which glories Thou remainest, pervading these worlds. How may I know thee, O Yogi, by constant meditation? In what, in what aspects art Thou to be thought of by me, O blessed Lord?