Light

"The glory of God gives it light, and the Lamb is it's lamp.."
Rev 21.23

"... nought of beauty is left when light is gone. Without light no radiance flashes from the sapphire, no peaceful ray proceedeth from the pearl; and thus all the beauty of the saints above comes from Jesus. If He withdrew, they must die: if His glory were veiled, their glory must expire." - Spurgeon

"... in the presence of light, a kaleidoscope forms coloured glass fragments into endlessly varying and startlingly beautiful patterns, each one unique.." - ICC