Lord Hanuman has a very precious place in our ancient history. As Today is Hanuman Janmotasav. On the occasion of Hanuman janmotsav let me tell you a story related to Hanuman Ji,
How Lord Rama left this world when Hanumana Ji was guarding him-
As Hanumana Ji had boons from

various gods and it was not possible for Lord Rama to leave this world in the presence of him, the following has happened.

One day when King Rama was sitting on his throne, his ring fell off. When it touched the earth, it made a hole in the ground and disappeared into it.

It was gone. His friend Hanuman was nearby. Rama said, Look, my ring is lost.” Dear friend, “Help me find it, please.
Hanumana was a powerful Vanara, a monkey-god, with the power to change shape and size and enter any hole, no matter how tiny.

He had the power to become the smallest of the small and larger than the largest thing. So he took on a tiny form and went down the hole. Hanuman reached the underworld looking for the lost ring. When he was finally taken to the King of Spirits, he kept repeating the name of Rama

The King of Spirits asked, “Who are you?”
“Hanuman.”
“Why have you come here?”
“Rama’s ring fell into a hole, and I came to fetch it.”
The king looked around and found a platter, which he held up for Hanuman to see. On it was thousands of rings. All of them were Rama’s rings.

The King of Spirits set it down and said, “pick out your ring and take it.”They were all exactly the same. “I don’t know which one it is,” said Hanuman. The King of Spirits said

, “There have been as many Ramas as there are rings on this platter. When you return to earth, you will not find Rama. This incarnation of Rama is now over. Whenever an incarnation of Rama is about to be over, his ring falls down. I collect them and keep them. Now you can go.”

As per another version of mythology, the ring fell into “nagaloka” or the kingdom of serpents. And Hanuman met the king of serpents, who made him aware of the repetitive nature of the “yugas” or ages.