Formal Phenomenology began with Edmund Husserl's attempt to discover the ground of phenomenal appearances and the relations between these appearances and the "things-in-themselves." His "Eidetic Reduction" hoped to reduce the internal intention of the subject to increase the external intention of what shows itself to the subject, so that what is other than the subject might show itself from its own intention without the interference of the subject's presuppositions, which are a reflection of the subject's intention and not of the Other that appears on the subject's intentional screen. The problem with the Eidetic reduction was that it was the subject's presuppositions that allow the Other to appear at all. What is outside and other to the subject must be brought into the subject, or appear to the subject, via an interpretive frame work, starting with Kant's "A Priori Categories" for basic perception and ending with the concepts given to human subjectivity by their collective Imaginary and Symbolic registers for more advanced "understanding."
Things-in-themselves aren't things or objects. They must be in relation with an outside or with otherness or with the intention of another because objects are reified by relations of difference according to physical rules, perceptual apparatuses or concepts. The outside co-arrises with the inside as a relation of difference governed by the natural laws, perceptual categories, and by the signifiers of minded things. The internal parts of an object are made whole by the intention of the whole, but the wholeness of an object isn't isolated within its objectification, but rather it is a relational intention or an intention extended into its outside environment. Evolution by natural selection is a principle that relates bodily objectification to "niche" intention, so that the body of an organism reflects its niche in its biome.
In phenomenology this co-arising of inside and outside as objectification is articulated as the necessity of consciousness to be about something, or to have an object, so that internal subjectivity is given by the difference of external objectivity, or otherness. Unconscious, or reactive, co-variable arising, or causality, is the physically determined intentionality of material objects. Non-physical, conscious intentionality is awareness-of, which in phenomenology is awareness "of" a different or other intention outside of the internal intention. In psychology the "Theory of Mind" is the awareness of the "mindedness," or of the "subjectivity" of the Other.
However, the psychoanalytic subject does not have an objectifiable intention as other objects do. There will always be a remainder of irreducible ambiguity after an Eidetic reduction is intentionally performed. And this resistance to identity or to intentional conceptualization is what is singular or different or other about the psychoanalytic subject, not only about the outside other but also about the internal other of the subject itself. Psychoanalysis is hermeneutical in natural rather than phenomenological because the irreducible otherness of subjectification requires interpretation rather than phenomenological reduction to objects.
Baddass vibes mixed by James Reeves of Midnight Radio: jamesreeves.co