“In the heaven of the great god Indra is said to be a vast and shimmering net, finer than a spider’s web, stretching to the outermost reaches of space. Strung at each intersection of its diaphanous threads is a reflecting jewel. Since the net is infinite in extent, the jewels are infinite in number. In the glistening surface of each jewel is reflected all the other jewels, even those in the furthest corner of the heavens. In each reflection, again are reflected all the infinitely many other jewels, so that by this process, reflections of reflections continue without end.”

–D. Mumford, C. Series & D. Wright, Indra’s Pearls: The Vision of Felix Klien