The ancient hand gesture, abhaya mudra is to assert fearlessness. It suggests that you come in peace with no weapons or in Vegas , it shows that the dealer has no cards up his sleeve and you should fold. In mythology, the powerful right hand has been known to calm a stampeding angry elephant and hail a New York City cab in the rain. When held steady it generates a wall of protection or signals the high bid at Sothebys. In any case, use with extreme caution. Various colors and sizes.