The Tibetan calendar is based on lunar cycles and is used to determine important dates for religious festivals and events. The calendar features a series of circles and symbols that represent the 12 animals of the Tibetan zodiac and the five elements of earth, water, fire, air, and space. This Vintage Tibetan Om Calendar Big Pendant is not only a beautiful piece of jewelry, but it also carries a deep cultural and spiritual significance. It is a perfect gift for anyone who appreciates Tibetan culture or is on a spiritual journey seeking deeper meaning and connection with the universe.