Shiva is that supreme God of Universe. According to puranas, Vedas, Upanishads , spiritual gurus and spiritual seekers knowledge Shiva is supreme consciousness. Trimurthis also created by Shiva. Shiva term means soul. Some are believe and worship one of Trimurthis (lord mahadev) physical form. Shiva is not like Trimurthis physical form. Shiva is only consciousness form it’s source of light (oval shape).