Superstitions are irrational beliefs, especially regarding the unknown. The document lists several common superstitions such as breaking a mirror bringing 7 years of bad luck, walking under a ladder being unlucky, and keeping your fingers crossed for good luck. On St. Valentine's Day, seeing certain birds is believed to predict a girl's future husband - a dove means a man with a golden heart, a sparrow a poor but happy husband, and an owl that she will never marry. The color someone is married in is also thought to influence their future - white is a good choice but black, red or pink could lead to misfortune.