In Blake's original myth, Urizen, the representation of abstractions and an abstraction of the human self, is the first entity. He believes himself holy and he sets about establishing various sins in a book of brass that serves as a combination of various laws as discovered by Newton, given to Moses, and the general concept of deism, which force uniformity upon mankind. The rest of the Eternals in turn become indignant at Urizen turning against eternity, and they instill these essences of sin within Urizen's creation. This torments Urizen, and Los soon after appears. Los' duty within the work is to watch over Urizen and serve as his opposition.