Yang Gong's death date is a geomantic term, also known as the "Thirteen Taboos of Yang Gong", which was laid down by Yang Junsong, a geomantic master in the Tang Dynasty, and they are the 13th of the first month, 11th of February, 9th of March, 7th of April, 5th of May, 3rd of June, 1st of July, 29th of July, 27th of August, 25th of September, 23rd of October and 21st of November.
The "Thirteen Taboos of Yang Gong" has been valued by Xuan Kongjia since ancient times. In the eyes of Xuan Kongjia, these thirteen days must not be chosen as opening, construction, marriage, signing contracts and so on.
the origin of the legend of Yang's public memorial day
In ancient times, there was a family named Yang who had 13 sons, but his neighbor had no sons. As a result, he often puts on a smug look in front of his neighbors. The neighbor was very angry and cursed him: "Don't be arrogant! Life, illness and death have their own lives. Who knows that your son will live a long life? "
Yang Gong looked up and laughed: "Ha ha! I have thirteen sons! I'm not afraid even if I encounter three disasters and six disasters! Even if God is jealous of me and takes away one of my sons a month, he will leave a son to die for me! "
Unexpectedly, it was a coincidence that there was a plague one year, and it happened that there was a leap month in this year. Yang Gong's son got the plague, and his first son died on the 13th day of the first month. Then, the sons died one by one. By the end of December, all 13 sons of Yang Gong had died, leaving only himself, and the evening scene was very bleak. People say that what happened to Yang Gong was all due to his own boasting. At the same time, the number thirteen is also considered an ominous number. The thirteenth day of the lunar calendar is not used for any happy wedding.