Members of the Javanese community who embrace philosophy or mysticism are accustomed to hearing their character described according to the wuku, the seven-day period constituting the 210-day Javanese calendar. The 14th wuku in this system is called Mondosiyo.
The Javanese believe wuku, which have different names like Sinta, Julungwangi, Dhukut, play an important role in shaping human behavior. Those born under Mondosiyo, for instance, are supposed to be more inclined to help people in trouble.
Some Javanese are convinced Mondosiyo has an auspicious influence on public life, and thus deem it necessary to celebrate it. The people in the hamlet of Pancot, on the slopes of Mt. Lawu near Surakarta, is one such community.