Yo mameva prapannascha mathpriyam na maheshwara
na kadpai sachapnothi mamevam the mayoditham
Sri Krishna says "If one surrenders to me without having surrendered to Radhaji, one cannot attain my darshan( Darshan means spiritual experience of seeing, feeling or hearing specific aspects of a deity)".
Sakrudavam prapanno va mathpriyamekikam sutha
Sevathenanyabhavene sa mamethi na samsayaha.
Sri Krishna says "Even if one does not surrender to me and worships and serves Sri Radhaji alone with singlemindedness, I will bless him with my darshan. This is beyond any doubt."
Jai Shri Radhe Krishna