Srila Prabhupada
So Kṛṣṇa understanding is not so easy. It is very difficult. Kṛṣṇa says. But by the grace of Kṛṣṇa, because He wanted to distribute Himself, Caitanya Mahāprabhu giving us Kṛṣṇa freely . . . kṛṣṇa-prema-pradāya te (CC Madhya 19.53). Rūpa Gosvāmī says that namo mahā-vadānyāya. Kṛṣṇa was also not so liberal. He simply asked us, "Surrender," but He did not distribute Himself. But in the form of Caitanya Mahāprabhu He distributed Himself, "Take Me, take Me, take Me. Without any price, take Me."
This is Caitanya Mahāprabhu, who is Kṛṣṇa, and He has come in the form of Caitanya, Kṛṣṇa Caitanya, to distribute Himself. Therefore He is recognized, namo mahā-vadānyāya, "The most munificent." No other incarnation, even Rāmacandra or Bhagavān Kṛṣṇa, They were not so liberal. But Caitanya Mahāprabhu is so liberal. Pāpī tāpī jata chilo hari-nāme uddhārilo (Hari Hari Bifale 3). They distributed Himself through the chanting of Hare Kṛṣṇa mantra.
(721031 - Lecture SB 01.02.20 - Vrndavana)