The transcendent is not beyond all experience, for beyond experience there is nothing that can be thought or felt. Marcel sees Truth as a singularity. Being true is only one aspect of Being. Truth emerges from Reality in that it defines only a single aspect of Reality. The Universe realizes itself in the fulfillment of Truth.
Truth is both immanent and transcendent.
Truth is also a quality that defines judgments of value. A value judgment may be true or false, but we cannot describe the truth or falsehood of a sensation or a feeling. A sensation or a feeling is a mode of Being. Truth is an aspect of Being. Truth is not a thing or an object.