The Phi Ta Khon festival is unique to the Dan Sai district in Loei Province and reflects the local Isan belief in ghosts and spirits. Held once a year, it is part of a grand merit-making festival known as the "Boon Luang" festival.
The origins of the Phi Ta Khon Festival can be found in the tale of Lord Buddha's last great incarnation before attaining Enlightenment. In Buddhist accounts, it is said that when Prince Vessandara, the Buddha's penultimate incarnation, it was such a joyous occasion that the village spirits came forth to join the welcoming parade.
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