The Palette of King Narmer shows the king twice in human shape, once on each face, trailed by his sandal-bearer. He can represent an intense bull, crushing a city with his horns, in a mode that winds up the pharaoh as a strong bull. The Churning of the Ocean of Milk shows the continuing struggle between gods and demons. This is all for the elixir of immortal life.

Why: Why was it created for religious worship?
The Palette of King Narmer was used in temple ceremonies to grind or mix makeup to be ritually applied to the image of the god. Later temple rituals included elaborate daily ceremonies involving the anointing and dressing of divine images. These palettes likely indicate an early incarnation of this process. The Churning of the Ocean