Chương 217: Chapter 217-apotheosis first

The Dark Tower is a powerful godly weapon built with fear stones to suppress sub-planes. In the eyes of gods, it's like thorns, nails and lighthouses in the sea of the universe. It's inserted in the sub-planes 'universes and constantly absorbs the dark energy of the sub-planes. The dark energy is surging in different levels like tides, fog and storms. It's emitted from the consciousness of every living being, and then it's like a stream gathering in the dark Tower."

those living beings in the secondary planes don't know the order of their planes and worlds in the universe. Neither do they understand the mystery and meaning of life. They're just like weeds in the wilderness which are harvested by flames. When the flames sweep over the wilderness, they will convert their lives into energy such as pain, killing, sorrow, fear, greed, disappointment, and panic and shoot them out. They're the harvested fruits and the feast of demons.

--"Book of taboos"