Ananta Shesha (king of all nagas - Naga in sanskrit means snake. It is also the genus name for cobras. ). Ananta Shesha represents infinity. I wanted to have another reference in the work to sea serpents. So the goddess below the sea is a conglomeration of more malevolent serpent mythologies. You can think of her simply as Tiamat. Tiamat is from Babylonian mythology and represented the sea and chaos. The more obvious reference would come from Christianity with that of Satan.