The tradition derived from traditional beliefs common to communities living along the banks of a river or waterway. It has become a need to worship and supplicate the Khongkla to avoid bad luck, to worship the gods in the Brahmin tradition, or to revere the Buddha's footprint. The celebrations are normally organized in the 12th month when the tide is high and the air is cool. Sukhothai’s Loi Krathong is held annually on the full moon night of the 12th lunar month at the Sukhothai Historical Park. The Krathongs, or floats, have been made in the form of lotus. There is also a reference, in the Sila Charuek, to candle lighting and playing with firework in a grand festival believed to be similar to the candle lighting and firework as practiced in the current Loi Krathongs Festival. In this festival, there are Nang Nopphamat procession, exhibitions, lighting of lantern at the historical site, Loi Krathong, fireworks over all waterways, and Krathong competition.