When he looked into her dark eyes, and saw that her lips were poised between a laugh and silence, he learned the most important part of the language that all the world spoke — the language that everyone on earth was capable of understanding in their heart. It was love. Something older than humanity, more ancient than the desert. Something that exerted the same force whenever two pairs of eyes met, as had theirs here at the well. She smiled, and that was certainly an omen — the omen he had been awaiting, without even knowing he was, for all his life. The omen he had sought to find with his sheep and in his books, in the crystals and in the silence of the desert.
—Paulo Coelho “The Alchemist”