Why is Shuanggui Hall called the ancestral hall of Southwest Buddhism?

Because Shuanggui Hall is the ancestral home of Master Poshan in the early Qing Dynasty, Master Poshan received the Dharma from Zen Master Yuanwu in Miyun, Zhejiang, and later returned to Sichuan to spread the Dharma. Currently, the entire Zen legal system in Sichuan and Chongqing is It was handed down from him and belongs to the Linji system.

I know that for example, Zen Master Zhangxue, the founder of Zhaojue Temple in Chengdu, and Zen Master Xiaozong, the founder of Baoguang Temple, are both his heirs.

You can look up Poshan Haiming’s life and you will know.