If one is empowered by Lord Krishna, one can speak as good as sastra such that his words become, in a sense, equal to sastra. Lord Caitanya empowered Kolaveca Sridhara to offer prayers which were so full of realization, that whole books could be written about each of them. And yet he was ostensibly a poor banana-leaf merchant. Lord Caitanya also empowered Ramananda Raya. In CC Madhya 9.133 Ramananda says, “My dear Lord, my tongue is just like a stringed instrument, and You are its player. Therefore I simply vibrate whatever arises in Your mind.”