What most men do not know - and if they could know it, why could they be called on to believe it? - Is that this blue sky, though illusory as an optical error and belied by the vision of interplanetary space, is nonetheless an adequate reflection of the Heaven of the Angels and the Blessed and that therefore, despite everything, it is this blue mirage, flecked with silver clouds, that is right and will have the final say; to be astonished at this amounts to admitting that it is by chance that we are here on earth and see the sky as we do.

Understanding Islam (1963)