In Kants words:
The light dove cleaving in free flight the thin air, whose resistance it feels, might imagine that her movements would be far more free and rapid in airless space. Just in the same way did Plato, abandoning the world of sense because of the narrow limits it sets to the understanding, venture upon the wings of ideas beyond it, into the void space of pure intellect. He did not reflect that he made no progress by all his efforts; for he met with no resistance which might serve him for a support, as it were, whereon to rest, and on which he might apply his powers, in order to let the intellect acquire movement for its progress.
I read Kant's casting of resistance or contingency as rest or support, necessary to movement or change, as a minimalist fable about the sociality of intuition: Nothing is represented to and for the intuition which has not met with the sheer resistance and partial histories of unpredictable bodies.
[From Lisa Roberson's essay Perspectors/Melancholia which can be found in her prose collection Nilling.]