Deity said: O son of Pritha! now hear how you can without doubt know me fully, fixing your mind on me, and resting in me, and practising devotion. I will now tell you exhaustively about knowledge together with experience; that being known, there is nothing further left in this world to know. Among thousands of men, only some work for perfection; and even of those who have reached perfection, and who are assiduous, only some know me truly.