red and black. This could have been retinal, and unconscious, that the eye is drawn to this opposition of hues, colors that stir us to commitment, to strength, to a longing for a better world, but Bruno counseled not to relegate such an echo to chance, because the enduring duality of red and black deserved more. He had found in his own cave a small disc of black obsidian that had a cross grooved into its surface.
