Philosophy is cool, look how easy is this Kant excerpt:
Productive Imagination as Transcendental Imagination, that is, a pre-discursive manifestation of transcendental apperception, which explains the foundation of Transcendental Idealism as a theoretical-metaphysical doctrine of the denial of the transcendental reality of space and time, and the affirmation of these as entia imaginaria, that is, original synthetic units coming from the same source from which the categories emanate as a discursive expression, but applied only for intuition, that is, pre-discursive, prior to any representation by universals, whether empirical, mathematical or meta-conceptual/ categories, or as Kant well defined, the combination of the multiple of an intuition in general in the original consciousness applied only to intuition, which makes possible the expression of the synthetic unity of apperception, in the form of the unity of Sensitivity performed by these formal intuitions, which precede and make possible the analytical unity of perception, that is, the form of logical-discursive restriction of transcendental perception that is capable of accompanying all representations after its synthetic unity in the original consciousness, so that this same need is involved/actualized then, in another act of synthesis, since now the extra-logical component of the categories found a "proxy" (the pure intuitions determined in accordance with the figurative synthesis), for the empirical-material side of the appearances displayed in the synthesis of apprehension, now giving objective reality to these transcendental determinations, that is, making it possible for the same determination expressed in the categories through intellectual property and "passed on" to pure intuitions during the figurative synthesis, now determines a priori the empirical-material side of appearances corresponding to sensations, and the physical realities they exhibit.