So knowledge means, "Then why shall I serve the unreal illusion? Let me serve the reality. If my business is to serve and nothing to be . . . never to be master, always to serve, then why I shall serve the illusion? Let me serve the reality." That sense is called knowledge. So anāśritaḥ karma-phalam. Sannyāsa, renounced order of life, means one who is in perfect knowledge, he can take sannyāsa. Otherwise, if he takes all of a sudden the renounced order of life, he will create misery for himself and misery for others. In full knowledge, that sannyāsa.
So here, how that full knowledge is exhibited after sannyāsa, that is explained here by the Supreme Personality of Godhead. What is that? Kāryam: "It is my duty to become Kṛṣṇa conscious and to serve the cause of Kṛṣṇa. Oh, that is my duty. That is my real duty." When we come to this knowledge, then we become mahātmā, or the great soul. Vāsudevaḥ sarvam iti sa mahātmā sudurlabhaḥ. You'll find in the Bhagavad-gītā. Bahūnāṁ janmanām ante jñānavān māṁ prapadyate (BG 7.19): "After many, many births, when a person, when a soul, is perfectly elevated to the platform of real knowledge, transcendental knowledge," then what does he do? "He surrenders unto Me," Kṛṣṇa says: "He surrenders unto Me." Bās . . . why?
Vāsudevaḥ sarvam iti (BG 7.19): "You are everything, Vāsudeva." Vāsudeva means Kṛṣṇa. This is Kṛṣṇa consciousness. But Kṛṣṇa says: "Such . . ." sa mahātmā sudurlabhaḥ, "such great soul is very scarce, rarely found." But any intelligent person, if he understands this philosophy that, "My ultimate goal of life is to surrender unto Kṛṣṇa. Why not surrender immediately? Why shall I wait?" Bahūnāṁ janmanām ante. "Why shall I wait for so many births?" So that stage is called real sannyāsa.