The Devas along with the asuras decided to get Amṛta (Ambrosia—the celestial honey of immortalily) by churning The ocean of milk. The Devas went to provide Mandara-mountain, for use as the churning rod. Their try was futile. The asuras designed a demo with the exact end result. The Bhūtagaṇas (Guards) https://128.199.208.170/