Drink the essence of the name of Rama, o tongue. It will help you remove or be distant from association with sin and you will be fulfilled with many kinds and types of rewards/gains. It will help you be far removed from the grief of the cycle of birth and death , it is the essence of all the religious treatises , the Vedas and sciences . It protects all creation. Brahma was born of a lotus from a golden egg and then he created the whole universe. So this phrase implies that Rama nama protects the whole universe. It will purify even the most impious or heretic . It is the pure song that paramahamsa (signature of poet) has taken refuge in, it is the same which has been drunk by sages like Shuka, Shaunaka and Kaushika.