Tradition: An inherited, established, or customary pattern of thought, action, or behavior (as a religious practice or social custom). The handing down of information, beliefs, and customs by word of mouth or by example from one generation to another without written instruction. Cultural continuity in social attitudes, customs, and institutions. Characteristic manner, method, or style.
Ritual: The established form for a ceremony; the order of words prescribed for a religious ceremony. Ritual observance: system of rites, a ceremonial act or action or a customarily repeated often formal act or series of acts.