But when Vāyu disappeared the people in the world ended up no longer capable of breathe. On the request with the gods, Brahmā entered the cave and healed Hanumān's wounds. The other gods also blessed Hanumān and conferred on him different boons, which include eloquence of expression. Because of https://www.youtube.com/watch?v=6cAOQp6Twlc&t=7s