Underneath the apparent homogeneity of a “positivistic” mentality, Valéry has never ceased to wonder about “things Vague and Impure”. Trying to understand the intérieur and the choses absentes particularly gives an answer to the need to place these “unknown” within the horizon of the possible, beyond the immediate grasp of knowledge. The primary vector of this operation is a thorough investigation of the “ambiguous” sphere of sensitivity, and in particular the uncanny meaning of “my-body”.