Vishvarupa

Vishvarupa ("universal form", "Omni-form"), also known popularly as Vishvarupa Darshan, Vishwaroopa and Virata rupa, is an iconographical form and theophany of the Hindu god Vishnu or his avatar Krishna. Though there are multiple Vishvarupa theophanies, the most celebrated is in the Bhagavad Gita, "the Song of God", given by Krishna in the epic Mahabharata, which was told to Pandava Prince Arjuna on the battlefield of Kurukshetra in the war in the Mahabharata between the Pandavas and Kauravas. Vishvarupa is considered the supreme form of Vishnu, where the whole universe is described as contained in him and originating from him.

Read more about Vishvarupa:  Literary Descriptions, Development, Iconography