Urizen is a character from the poetry of English poet William Blake. He is a god-like figure that represents reason and authority. He is seen as a strict and powerful ruler and is often compared to a king. In the poem, Urizen is portrayed as a controlling character who limits people's freedom. He is also seen as a symbol of law, order, and structure in society, something that can both be good and bad. He stands for the idea that too much control can lead to a lack of creativity and joy.