One verse

Srimad Bhagavatam 4.24.55

4.24.55

तं दुराराध्यमाराध्य सतामपि दुरापया । एकान्तभक्त्या को वाञ्छेत्पादमूलं विना बहि: ॥ ५५ ॥

tam duraradhyam aradhya satam api durapaya ekanta-bhaktya ko vanchet pada-mulam vina bahih

tam
unto You
duraradhyam
very difficult to worship
aradhya
having worshiped
satam api
even for the most exalted persons
durapaya
very difficult to attain
ekanta
pure
bhaktya
by devotional service
kah
who is that man
vanchet
should desire
pada-mulam
lotus feet
vina
without
bahih
outsiders.

My dear Lord, pure devotional service is even difficult for liberated persons to discharge, but devotional service alone can satisfy You. Who will take to other processes of self-realization if he is actually serious about the perfection of life?