It's impossible to conceive of consciousness or experiencing or anything like that without something like Kant's transcendental consciousness behind, setting up the space, as it were, for any phenomenon from the most basic to the strangest 'wild essence' to arise. What this is exactly can never be either conscious or unconscious, but it must overpass the realm of experiences in such a way as to grant them objectivity and so also, subjectivity. Indeed, the self is just such a transcendental 'category', but of a peculiarly intermediate kind since it is never present and prone to cycles of withdrawal. If you think of the operations in the brain as like the thing-in-itself, and the corresponding experiences as the representations, then it is clear that this transcendental organising must belong entirely on the experiential side - even if, as may well be the case, categories of space and time also map to brain states. This way of seeing it accounts for the inherent geometrising of consciousness when it is forced into unwonted self-exposure as in certain psyche-delic experiences. These are like a temporary overlap of phenomenal and transcendental consciousness.