How did the first and fifteenth days come about?

The first and fifteenth days of the first lunar month are the sixth and tenth lent days of Buddhism. On this day, there are gods cruising below. First, the first and fifteenth days are the ten days of Buddhism, and the first, eighth, fourteenth, fifteenth, eighteenth, twenty-third, twenty-fourth, twenty-eighth, twenty-ninth and thirtieth days of the lunar calendar;

Secondly, according to Tibetan scriptures, the above ten days were the days when various crimes were concentrated and their severity was determined. If people can read the icons of Tibetan Buddha and Bodhisattva during the ten-day fast, there will be no disaster in the east, west, north and south.

Third, the first and fifteenth days of the first lunar month are also auspicious days for Taoism in China, so many people worship Buddha on the first and fifteenth days of the first lunar month.