>A prescribed or established rite, ceremony, proceeding, or service: the ritual of the dead
>Any practice or pattern of behavior regularly performed in a set manner
>A prescribed code of behavior regulating social conduct (eg: shaking hands).
>A hollow utensil, such as a cup, vase, or pitcher, used as a container.
These are containers for water and medicine, blessings, visions and light. Some of them are intended for everyday use, some are to hold memories of a person or event. While they may vary widely in material and design, they are united in spirit.