In the native cultures of the Andes
Amaru is considered a symbol of destruction and also of protection. It is often represented as two intertwined serpents called Yacumana and Sachamana. The bicephalous serpent represents a duality of creator/destructor, being a celestial creature that has the ability to travel through the different levels of the cosmos (upper world, world here, underworld), transmuting according to its correspondences to each of them, becoming a link between these worlds.
Yacumana, one of the mythical serpents in the upper world, is the one that originates rains, thunder, hail, ice, and other atmospheric phenomena, and is associated with "quwa," a small "luminous feline" bearer of lightning and hail that causes them, representing the constellation known as "Scorpio" that announces summer. In the world here, it becomes the river that creeps over the earth, and in the inner world (underworld), it takes the form of a serpent.
Sachamana emerges from the interior in the form of a bicephalous serpent which, in the world here, takes the form of a tree, with its upper head feeding on flying beings and its lower head attracting animals from the surface of the earth. In the upper world, it transforms into the rainbow that fertilizes nature.