Shrivatsa is a holy symbol, and it is considered as very auspicious by the Hindus, especially by the Vaishnavites. Shrivatsa is the mole (mark), which appears on the chest of Lord Vishnu, where his consort Mata Lakshmi Devi permanently resides.
In the famous Vishnu Sahasranamam Stotra, the word Shrivatsa is mentioned. Reciting the name Shrivatsa is similar to reciting the “OM NAMO NARAYANA” mantra. The name is popular amongst South Indians, and by repeatedly chanting the mantra, ”OM SHRIVATSAYA NAMAHA”, would bring all kinds of prosperity to us, and we would get the blessings of Mata Lakshmi Devi also.
Ancient rishis used to worship Lord Vishnu by chanting his various names, and among that, they would recite his holy name “SHRIVATSA” also. It is common among the Hindus to keep the name of Shrivatsa, to their sons, and they would fondly call them as Sri. The word Sri is a symbol of respect, and usually it would get added before the name of the popular religious personalities.
Shrivatsa symbol would be found in almost all the avatars of Lord Vishnu. The great Sri Thiruppaan Alwar, was the incarnation of Shrivatsa. He had taken birth in this earth before few thousand years, in order to spread the “VISHNU BHAKTI” among the masses.
All the alvars were the incarnations of Lord Vishnu only, and they had the division vision of Lord Vishnu. Since we are all humans, it is not possible for us to see him, and to see his Shrivatsa Mark on his chest. But the great rishis like Narad, Bhrigu, and the great Vishnu devotees like Bhakta Prahlada, Dhuruva and Thumburu had the divine vision of Lord Vishnu, and they had also seen the Shrivatsa Mark on the chest of Lord Vishnu. It is also believed that the forth coming Kalki avatar also would bear the Shrivatsa symbol on his chest, and would destroy the evils and would protect the good ones, at the end of the Kali Yuga.