What can you tell me about the folklore of yawning? Is it good luck or bad?
Caused by sluggish blood or insufficient sleep, yawning carries superstitions of devilry, disappointment, ill omen, and danger. Hindus snap their fingers three times after a yawn and call on their god for protection. Covering a yawn with one’s hand was once a method of preventing the devil from entering or a caution against losing one’s breath entirely. The connotations of ill omen probably stem from the belief that to show a yawn was to make oneself vulnerable to spirits entering the wide-open chasm of the mouth. A covered mouth was an easy remedy for that.