1, from the pre-Qin, Lahai Festival are used to worship ancestors and gods, pray for a good harvest and good luck. Laha Festival in addition to ancestor worship to the gods, people have to expel the epidemic, this activity comes from the ancient Nuo. It is said that the founder of Buddhism, Sakyamuni's path to enlightenment is also in the December 8th, so Lahai is also a Buddhist festival, also known as the Buddha's path to enlightenment.

2, about the Lahai Festival legend and there are many, it is said that when Zhu Yuanzhang fell in prison suffering, cold and hungry Zhu Yuanzhang even from the prison rat hole shaved some red beans, rice, jujubes and other seven or eight kinds of grains and cereals. He then boiled these things into a porridge, because that day is the eighth day of the eighth month of the Lunar New Year, Zhu Yuanzhang will name this pot of porridge for Lunar New Year porridge. Later, Zhu Yuanzhang pacified the world, in order to commemorate the days in prison, he set this day as the Laha Festival, the porridge eaten on that day was officially named Laha congee.

3, there is another legend, it is said that the founder of Buddhism, Siddhartha Gautama, saw the human suffering from old age, sickness and death, and dissatisfied with the theocratic rule of the Brahmins at that time, gave up the throne, and went out to monasticism. After six years of asceticism, he attained enlightenment under the Bodhi tree on the eighth day of the waxing moon. During these six years of asceticism, he ate only one flax and one rice a day. The descendants do not forget his suffering, in the eighth day of the lunar month every year to eat porridge in honor.