Jñāneśvarī (commentary on the Bhagavadgītā) 9.38

9.38

agā thānīṃ kīra dūdha gūḍha |
pari thānāsīci navhe kīṃ goḍa |
mhaṇoni saro kāṃ sevitayācī cāḍa |
jarī ananya miḷe ||

Ah, milk is indeed hidden in the breast,
yet it is not sweet to the breast itself;
therefore, let the need of the consumer be satisfied,
if a wholly devoted one is found.