As the tools for maintaining the balance of the world there are ritual for everything imaginable, from knowledge,cleansing machines to marriage and birth ceremonies, all of different types and levels. Rituals consists of calling down the gods and the ancestors for visits from their heavenly abode in their country above the mountain.

Balinese rituals are ruled by a complex calendar system, a combination of the Indian Saka calendar and the Wuku calendar. The Saka year rules the agricultural cycle and is divided into lunar months and fitted to the solar calendar by the addition of an extra month, every thirtieth month. The full moon and the dark moon are the most important ritual moments of this calendar. The first day of the Saka year, however, usually in March is the day of Silence and of profound importance throughout Bali, a fasting day and a day for contemplation.

The Wuku year consists of a cycle of 210 days divided into thirty wuku weeks, each of which corresponds to a specific activity. There is a week of weapons, of plantations and one of animals, for example. There are then other types of weeks varying from one to ten days, each having a name and number, being auspicious or inauspicious. The most important days in this system are Galungan and Kuningan.