Hasidic Judaism
Kvitel (, "little note"; plural קוויטלעך, kvitelach) refers to a practice developed by Hasidic Judaism in which a Hasid (a follower of Hasidic Judaism) writes a note with a petitionary prayer and gives it to a Rebbe (Hasidic Jewish leader) in order to receive the latter's blessing. This prayer may be a general request for health, livelihood, or success, or a specific request such as recovery from illness, the ability to bear children, a wedding match, etc.