Eisa dance has it's origins in the Buddhist religion. The word "eisa" is believed to have come from chants made by Buddhist priests during burial ceremonies.
Throughout the country of Japan, the practice of ancestor worship is common. Obon festivals are held during July or August, depending upon regional preferences. Bon Odori is what the Japanese call the Obon Dance. It is performed to welcome, rejoice with, and send off the ancestral spirits on their annual visit.
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