Vamana and the king Bali or Vali
For a thousand years, Aditi meditated. Vishnu was pleased at these prayers and appeared before Aditi. "What boon do you wish for?" he asked. "The demons are oppressing my children," replied Aditi. "Please grant me a son who will defeat the demons." "Do not despair," said Vishnu. "I myself will be born as your son. I will take care of the demons." We should note the husband of Aditi is Kashyapa.
Kashyapa and Aditi accordingly had a son. This son was a dwarf (vamana). Bali happened to organize a yajna and the dwarf came to attend the ceremony. On the occasion of the yajna. Vali had decided that he would not refuse anyone what he asked for. Shukracharya was the preceptor of the demons and naturally, he was Vali’s guru as well. Shukracharya saw through the trickery that was involved and realized that the dwarf was none other than Vishnu.
He tried to put Bali on his guard and warned Bali that he should not grant what the dwarf asked for. But Bali would not listen. "Vishnu is the lord of everything." He said. "I am indeed fortunate if Vishnu has come to grace my ceremony in the disguise of a dwarf. How can I refuse what he asks for?"
Bali welcomed the dwarf with offerings. "What is your desire?" he asked. "I am duty bound to give you what you ask for."
"I desire nothing much," replied the dwarf. "I do not want gold or riches or elephants or horses. All that I ask for is as much of land as can be covered in three of my footsteps."
"Granted," said Bail.
No sooner were the words uttered that the dwarf assumed a gigantic form. His head rose way up into the sky. With each one of his footsteps, Vishnu covered one of the three worlds. Thus Bali ended up by donating all of the three worlds to Vishnu and there was nowhere for the demons to live in. But Vishnu was pleased at Bali’s generosity. He therefore decreed that, henceforth, the demons would live in the underworld. As for heaven, it was returned to Indra. This was the story of Vishnu’s dwarf incarnation.
OM NAMO NARAYANAYA