(1) By commemoration, we mean rituals
associated with the passage of time, such as
annual, monthly, or weekly events.
• Some such rituals are connected with the annual
passage of the sun, such as rituals on the Solar
Solstice (longest day of the year) or Winter
equinox (shortest day of the year).
• In many societies the passage of the moon also
necessitates certain rituals. The full moon is a
sacred day and many places.