It provides freedom and invites the impulse to engage in foolishness.
For "brother of foolishness," i.e.
I don't care about all your bones foolishness, but Fitz buying the vodka scares me.
The quiet expression of these startling ideas is more remarkable than their adoption; for smaller artists live on still more startling ideas; but most remarkable of all is the presentation of Parsifal, both in his foolishness and in the widsom which comes to him through pity.
But this line of argument was latent in Christian thought from the time when St Paul spoke of the " foolishness " of preaching.