Starting from the category of “Not-Yet”, Bloch constructed an open system towards utopia. “Not-yet-conscious” and “not-yet-being” extend the boundary of “reality”, hence what did not or could not happen in the past, what is in a dynamic process at present, and what inevitably or possibly happen in the future, become a part of reality because of the possibility living in it. Reality is no longer just what already exists, but also includes the extension of the objective possible part of it. Based on the concept of “Reality” from the perspective of “Not-Yet”, Bloch defended Expressionism, and by taking Goethe’s Faust as an example, he gave Faust’s exploration along his whole life the character of transcendence and treated him as “the paragon of utopian human”.