Four-leaf clovers are really hard to find, and that rarity is why we consider them lucky. A common superstition holds that each of the clover’s four leaves represents either faith, hope, love, or luck. The 15th century politician and author John Melton even wrote, “If a man walking in the fields finds any four-leafed grass, he shall in a small while after find some good thing.” In other words, the four-leaf clover is quite the multi-purpose charm for good fortune.