The devas and also the asuras decided to get Amṛta (Ambrosia—the celestial honey of immortalily) by churning The ocean of milk. The Devas went to convey Mandara-mountain, to be used since the churning rod. Their attempt was futile. The asuras designed a trial With all the same end result. https://mylesymzju.blogocial.com/what-does-23naga-mean-64877876