Inner experience is led by discursive reason. Reason alone has the power to undo its work, to hurl down what it has built up. Madness has no effect, allowing debris to subsist, disturbing along with reason the faculty for communicating (perhaps, above all, its is rupture of inner communication). Natural exaltation or intoxication have a certain ‘flash in the pan’ quality. Without the support of reason, we don’t reach ‘dark incandescence’.
from Inner Experience. SUNY, 1988. page 46f.