Why can't I take a shower tomorrow New Year's Day morning?

There are two main reasons for this statement:

First of all, this custom comes from Buddhism, because Buddhism stipulates that Buddhist believers should fast, recite scriptures and worship Buddha on the fifteenth day of the first lunar month, which is actually equivalent to Sunday in the west. People must clean up before the first day of the first month and the fifteenth day of the first month. On the first and fifteenth day of the first month, they will go to the temple to burn incense and worship Buddha and pray for peace. If you wash your hair on the first and fifteenth day of junior high school, it is said to be blasphemous.

Second, there is a water god in the water, and the birthday of the water god is on the second day of the first day, so you can't wash your hair and clothes these two days, otherwise it is disrespectful to the water god.