After meditating on His divya-mangaLa-svarupa, a jiva becomes enlightened whose mind becomes clear thereby destroying all worries. In such a person, Atma-jnana is deeply rooted
A sannyasi who's mind is enlightened is freed of all worries. He should meditate on That Atma uninterruptedly as it is the very reason for his enlightenment
If one's mind is enlightened, he is destined to quickly attain 'aparoksha jnana'. Because of this, all his worries get destroyed.
This is what shruti-s proclaim as 'tarati shokam Atmavit'