We have staked our life, our reason, our spirit, our religion, in order to understand the perfection of an atom. Sew up your lips and ask nothing of the empyrean or the throne of God. No one really knows the essence of the atom – ask whom you will. The Heavens are like a cupola upside down, without stability, at once moving and unmoving. One is lost in contemplation of such a mystery – it is veil upon veil; one is like a figure painted on a wall, and one can only bite the back of one’s hand. The Conference of the Birds, Farid ud-Din Attar