In Hinduism, Surya is the chief solar deity, one of the Adityas, son of Kasyapa and one of his wives Aditi, of Indra, or of Dyaus Pitar (depending by the versions). He has hair and arms of gold. Surya drives through the heaven in his triumphal chariot harnessed by seven horses or one horse with seven heads, which represent the seven colors of the rainbow or the seven chakras. He presides over "Ravi-waar" or Sunday.
In Hindu religious literature, Surya is notably mentioned as the visible form of God that one can see every day. Furthermore, Shaivites and Vaishnavas often regard Surya as an aspect of Shiva and Vishnu, respectively. For example, the sun is called Surya Narayana by Vaishnavas. In Shaivite theology, Surya is said to be one of eight forms of Shiva, named the Astamurti.