When Ravana Deposited His Soul:
Before fighting the battle with Rama, Ravana gave his soul to a hermit called the Fire-Eye. The Fire-Eye was supposed to keep his soul safe and secure. In the battle, Rama was surprised that the arrows struck Ravana, but did not wound him. Only one of the allies of Rama knew the secret behind it. So he transformed himself to resemble Ravana and went to the hermit, asking for the soul. No sooner the soul was set free, Rama slayed Ravana.