Sad-dharma, or duty performed for going back to Godhead and thus becoming His unalloyed devotee, is the only pious activity; all others may pretend to be pious, but actually they are not. It is for this reason only that the Lord advises in the Bhagavad-gītā that one give up all so-called religious activities and completely engage in the devotional service of the Lord to become free from all anxieties due to the dangerous life of material existence.
-Shrimad Bhagavatam Canto 2 Chapter 10 Verse 4, Translation and Purport

तेषामेवानुकम्पार्थमहमज्ञानजं तम: ।
नाशयाम्यात्मभावस्थो ज्ञानदीपेन भास्वता ॥ ११ ॥
To show them special mercy, I, dwelling in their hearts, destroy with the shining lamp of knowledge the darkness born of ignorance.
-Bhagavad-Gita Chapter 10 Verse 11