How to explain Yang Gong's taboo?

This should be the anniversary of Yang Gong's death.

"Yang Gong banned Japan", also known as "Thirteen Bannings in Yang Gong", was handed down by Yang Junsong, a geomantic master in the Tang Dynasty. These thirteen "taboo days" are 1 month 13, February 1 day, March 9, April 7, May 5, June 3, July1day, July 29, and July 29.

I. Days

13 (every year)

Two. definition

Metaphysics is fierce and not suitable for doing great things.

Three. introduce

According to legend, Yang Junsong, a geomantic master in the Tang Dynasty, formulated the "Thirteen Taboos for Yang Gong" according to the order of "Twenty-eight Stars". These thirteen "taboo days" are 1 month 13, February 1 day, March 9, April 7, May 5, June 3, July1day, July 29, and July 29. "Thirteen Taboos of Yang Gong" has been valued by Xuankong since ancient times. In Xuankong's eyes, these thirteen days can never be chosen as opening, construction, marriage, signing contracts and so on.

4. The origin of legend

Some people say that "the death of Yang Gong" is to commemorate the Yang Jiajiang family, a famous anti-Liao scholar in Song Dynasty. Yang Jiajiang Lao Yang always wins battles, but he always loses for a few days. Later, he came to the conclusion that Yang Gong could not fight when he died. Spread to the people, this year can't do great things, can't visit relatives.