Srimad Bhagavatam Canto 07, Chapter 09, Text 53

SB 7.9.53

mam aprinata ayusman
 darsanam durlabham hi me
drstva mam na punar jantur
 atmanam taptum arhati
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
My dear Prahlada, may you live a long time. One cannot appreciate or understand Me without pleasing Me, but one who has seen or pleased Me has nothing more for which to lament for his own satisfaction.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
One cannot be happy under any circumstances unless one pleases the Supreme Personality of Godhead, but one who has learned how to please the Supreme Lord need no longer lament for his material condition.
Srimad Bhagavatam Canto 07, Chapter 09, Text 52
Srimad Bhagavatam Canto 07, Chapter 09, Text 54