Symbols - What does heaven look like

Ouroboros

The symbol used to portray the concept of Energy recycling.

The symbol is always the same with a serpent devouring its own tail, occasionally two serpents are used [yin and yang energy]. The serpent here represents the energy and there is the idea of destruction as well as creation embodied in the picture. The symbol represents the endless cycle of ordered energy recycling via construction and destruction; it is one of the enduring symbols of the recycling of energy – the dissolution of ordered energy which is then used to feed the creation process – the creation of ordered energy. See also Serpent.

In some depictions the serpent is shown half black and half white or in contrasting colours which in this case is depicting the fact that creation and destruction is based on Contrast.

A Dictionary of Symbols – J E Cirlot
In some versions of the Ouroboros, the body is half light and half dark, alluding in this way to the successive counterbalancing of opposing principles as illustrated in the Chinese Yang-Yin symbol....... there is a Venetian manuscript on alchemy which depicts the Ouroboros with its body half black ..and half white