In spite of their opposite methods, Fichte's deductive process and Husserl's reduction cope with the same challenge: they aim to explain how the sensible world is dependent on reflixivity. As perception is generally linked with natural existence, and pure passivity, the deepest significance of transcendental thought in those philosophies consists in equalizing phenomenon and reflexion. In the heart of bodily life, some spiritual theme has to be found. Fichte defines action as the quantification of freedom, and freedom is effectively achieved in the sensible world. Human perception reveals freedom altogether in corporal movements as in the surrounding world (Umwelt). The Fichtean theory of acknowledgment assumes this goal. In the same way, Husserl's reduction explains how significance proceeds from the body (Leib). The Husserlian analysis of kinesthesis and the radical experience of the hand touching the other hand both introduce to the status of pre-reflection. However the complete resolution of the question is given by Fichte: Intelligibility may exist in the sensible world as the metaphysical concept of phenomenon (Erscheinung) in the last Fichtean philosophy expresses the idea of the Absolute pervading the sensible.