In his great book On Love, Stendhal once described a salt mine near Salzburg, Austria. The miners would stick small, leafless branches down into the salt mines and leave them there for a time. When they would retrieve them, the branches would be covered with a shining layer of diamond-like crystals that shimmered in the light. Stendhal said that enchanted lovers crystallize each other in this way, their adoring eyes scattering diamonds on every virtue of the beloved.