This article aims to reexamine the status of Dreams of a SpiritSeer Elucidated by dreams of Metaphysics in the process of the evolution of Kant’s critical philosophy from the perspective of Genealogy and the research strategies of “Proceduring”.Kant’s philosophy showed a clear turn from an inquiry concerning the distinctness of the principles of natural theology and morality around 1762, that is, from pursuing the “knowledge” of certainty to concerning the “certainty” of knowledge, and Kant also transformed from a natural philosopher into a metaphysician.The key to the success of critical philosophy is to reconstruct the connotation of the certainty of knowledge, In Dreams of a SpiritSeer Elucidated by Dreams of Metaphysics, December 1765, Kant has basically completed this reconstruction, changing the traditional truth view of the subjectobject “conformity theory” into “universal validity” between subjects, and the connotation of certainty or objectivity changes from “incontestability” to “universal validity” or “universal conveyance”.The “universal validity” transferred from the “question for certainty” brought Kant’s philosophy into an extremely wide and deep ideological realm, which led him to think extensively about the universality and apriority of cognitive judgement, moral judgement and aesthetic judgment, finally making him come to the key conclusion “Metaphysics is a science of the limits of human reason” and reach the new philosophical pattern of dichotomy between the subject and the world as phenomena and thinginitself.This level of Kant’s philosophy can be called “Buddhastyle refinement”.

Kant； Dreams of a SpiritSeer Elucidated by Dreams of Metaphysics； the quest for certainty； genealogy； proceduring