Srimad Bhagavatam Canto 07, Chapter 15, Text 77

SB 7.15.77

na yasya saksad bhava-padmajadibhi
 rupam dhiya vastutayopavarnitam
maunena bhaktyopasamena pujitah
 prasidatam esa sa satvatam patih
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Present here now is the same Supreme Personality of Godhead whose true form cannot be understood even by such great personalities as Lord Brahma and Lord Siva. He is realized by devotees because of their unflinching surrender. May that same Personality of Godhead, who is the maintainer of His devotees and who is worshiped by silence, by devotional service and by cessation of material activities, be pleased with us.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Lord Krsna is not properly understood even by such exalted personalities as Lord Siva and Lord Brahma, what to speak of ordinary men, but by His causeless mercy He bestows the benediction of devotion upon His devotees, who can thus understand Krsna as He is. Bhaktya mam abhijanati yavan yas casmi tattvatah. No one within this universe can understand Krsna in truth, but if one engages in devotional service one can understand Him perfectly well. This is also confirmed by the Lord in the Seventh Chapter of Bhagavad-gita (7.1):
 
mayy asakta-manah partha
 yogam yuñjan mad-asrayah
asamsayam samagram mam
 yatha jñasyasi tac chrnu
 
“Now, hear, O son of Prtha [Arjuna], how by practicing yoga in full consciousness of Me, with mind attached to Me, you can know Me in full, free from doubt.” Lord Krsna Himself teaches how one can understand Him perfectly well, without a doubt. Not only the Pandavas but everyone who sincerely accepts the instructions of Krsna can understand the Supreme Personality of Godhead as He is. After instructing Yudhisthira Maharaja, Narada Muni prays for the Lord’s blessings that He be pleased with everyone and that everyone become perfect in God consciousness and return home, back to Godhead.
Srimad Bhagavatam Canto 07, Chapter 15, Text 76
Srimad Bhagavatam Canto 07, Chapter 15, Text 78