What day is the thirteenth day of the seventh lunar month?

The thirteenth day of the seventh lunar month is a festival in Tibet.

July 30 (or 29) of the lunar calendar should happen to be a dark day in July, which is the day of the earth treasure king. According to legend, this day is the day when the king of earth treasure gains enlightenment. People in Rui 'an call it "Birthday of the Earth Treasure King Bodhisattva".

Hide in the soil, which means "patience is like soil, quietness is like hiding in the soil." In other words, he is like the earth, containing countless seeds of good roots. The earth treasure king was originally the land god of ancient India. This folk festival is the product of the combination of foreign culture and local culture, and its reason comes from the common demand of Buddhism and folk psychology.

Extended data:

Bodhisattva Ksitigarbha lived in Jiuhua Mountain, also known as "Lotus Buddha Country", for 75 years until the nirvana of Tang Kaiyuan on July 30, 26, and lived for 99 years. After death, the body sat in the jar and opened three years later, with a fresh face. Later generations built a body treasure hall, also known as the body tower. In the seventh year of Xianfeng, it caught fire with Huacheng Temple, but it was in good health. The mourning hall rebuilt during the Tongzhi period is resplendent and magnificent. The lamp is bright all the year round, symbolizing the light of Bodhisattva Wade, which constantly shines on the nether world and saves all beings from the suffering of light and shade. Because the monks at that time were the embodiment of the Bodhisattva, Jiuhua Mountain became the Huaying Dojo of the Bodhisattva and one of the four famous mountains in China.

In the past, there were temples dedicated to the king of Tibet everywhere, and on July 30 every year, good men and women would go to worship. In particular, Liang Qing in Nanjing is said to be the place where Tibetan Bodhisattvas practice. Since the beginning of the month, there has been an endless stream of believers burning incense, especially after the 25th. There are many tourists going up and down in Liang Qing, and there are tea sheds everywhere. Teahouses are arranged in various ways, and the fragrance does not stop until the end of the month, which is called "Gaishanmen".

References:

Baidu encyclopedia-Tibetan calendar festival