Pagerwesi commemorates the day upon which an ancient battle between good an evil was fought. The word Pagerwesi means 'iron fence'and reflects the purpose of this important event: It is the day to strengthen one's fortrifications against evil. The correlation between Pagewesi and the Saraswati is that knowledge is so powerful that it must be protected from the bad influences.
Pagerwesi Day reminds people to be wise and more aware of the function and the power of knowledge.
The Balinese celebrate the Pagerwesi ceremony severy six month according to the Balinese calendar. The celebrarion is usually falls 3 days after the Sarawati day.
During Pagerwesi, people pray to Sanghyang Pramesti Guru ( Lord of the Universe) for strong mental defencein wordly tempation and people make special offering for the dead who have not yet been cremated. Observances are usually held at every house compopund and temples. In North of Bali ( Buleleng Regency) it is more lively celebrated.