During this time, local residents of Chinese ancestry strictly observe a 10-day vegetarian or vegan diet for the purpose of spiritual cleansing and merit-making. Sacred rituals such as walking barefoot over hot coals and ascending ladders with bladed rungs are performed at various Chinese shrines and temples by entranced devotees known as "Ma Song".

Food fest: Phuket eats greens for good fortune

A young devotee of the Chinese Shrine Gim Tsu Ong looks on prior to a fire-walking ceremony at the Vegetarian Festival in Phuket, Thailand. AP