ananta - unlimited; nityānanda-gaṇa - followers of Śrī Nityānanda Prabhu; ke karu - who can; gaṇana - count; ātma-pavitratā - of self-purification; hetu - for the reason; likhilāṅ - I have written; kata jana - some of them.

No one can count the unlimited followers of Nityānanda Prabhu. I have mentioned some of them just for my self-purification.