Of the ten incarnation, the fifth incarnation of lord Vishnu is Vaman that appeared in Treta Yuga. Vaman means a Dwarf."Vaamana", as the name indicates 'One who has a small body'. It was in the form of a child . Once asura Mahabali ruled over all three lok(indra lok, prithvi lok, asura lok) .The God and devtas were very humiliated due to loss of their kingdom so they appealed to lord vishnu to remove mahbali from indra lok. Lord Vishnu consoled the other devtas to help them.
Once Mahabali was performing a yagya and for its success he had to provide anything that a Brahmin seeks.Then lord Vishnu take vaman avatar and asked just three feets of land. It seems funny to Bali and asked brahmin for more than that but brahmin insisted for three feets of land. lBali agave assertion, Now lord Vishnu starts to grow to a great height an in his first step he cover the whole earth,
with his second step he covered the entire sky and region above, now Bali had no more land to offer for third step that's why asura Bali offered his head in front of lord Vishnu for the third step.Thus lord Vishnu regain the power from the asura king Bali and sent him to rule over the lower region.
The worshiper of Vamana gets immense strength to fight against all odds, evils and enemies and emerges out as a winner. He gains confidence and wisdom and is respected and recognized in his sphere of work. The worshiper of this Shaligrama is very successful in business pertaining to land, reality, gold, metal, diamonds and precious gems.