Where does Vishnu come from?

In Hindu mythology, Vishnu is one of the principal deities and is part of the Trimurti, which includes Brahma and Shiva. He is believed to be the preserver and protector of the universe, emanating from the cosmic ocean during the creation of the world. Vishnu is often depicted as taking various avatars, such as Rama and Krishna, to restore dharma (righteousness) whenever it is in decline. His origins are rooted in ancient texts like the Vedas and Puranas, which describe his divine nature and role in maintaining cosmic order.