Bhagavad Gita 10.10-11
tesam satata-yuktanam bhajatam priti-purvakam
dadami buddhi-yogam tam yena mam upayanti te
tesam evanukampartham aham ajnana-jam tamah
nasayamy atma-bhava-stho jnana-dipena bhasvata
To those who are constantly devoted to serving Me with love, I give the understanding by which they can come to Me. To show them special mercy, I, dwelling in their hearts, destroy with the shining lamp of knowledge the darkness born of ignorance.