But when Vāyu disappeared the men and women in the world were being no longer able to breathe. On the request with the gods, Brahmā entered the cave and healed Hanumān's wounds. One other gods also blessed Hanumān and conferred on him different boons, which includes eloquence of expression. https://www.youtube.com/watch?v=6cAOQp6Twlc&t=7s