Rational plausibility is a hermenuetical technique of interpreting religious scripture by inventing a scheme whereby the madness of it seems less mad. This means inventing a metaphor, or analogy or argument, that simply shows that the thought is conceivable in some contact — however fictional — and thus points the road to further elucidation. If anything, it is a way of at least palliating the mind, to give the soul a chance to feel, and might exchange inspiration for sheer consternation. In this sense, it is not a tool for furthering understanding, so much as it is a technique for discovering moments of spiritual upliftment, which may often be themselves the real key to understanding.