I say we keep up the sisyphean task of truth-seeking in full recognition of it's ultimate futility, in denial of wishful wanton delusion. Embracing the Absurd seems to me like a sort of intellectual honesty given the circumstance of our mysterious existence.
Yes, this is beautifully put, and I agree. Our lives are full with sisyphian tasks like that, yet we have to keep rolling that rock uphill... ;-)