Why did Hebei people move with Shanxi?

Most of them are from Hongdong, Shanxi in the early Ming Dynasty. The Ming government set up a bureau in Guangji Temple, arranged teams and distributed "Sichuan-based funds". As a result, Guangji Temple and Sophora japonica have become gathering places for immigrants to move out. When the immigrants set out, they piled up locust trees one after another, said goodbye to each other and turned back frequently. In the end, only the locust tree and the old stork nest on the beach of Fenhe River are faintly discernible, and the big locust tree and the old stork nest in my hometown have become the signs of farewell to my hometown. During the fifteen years from Hongwu to Yongle in Ming Dynasty, there were 18 large-scale migrations under Sophora japonica, and Shanxi people migrated to more than 500 counties and cities in Yusheng, including Beijing, Hebei, Henan, Shandong, Anhui, Jiangsu, Hubei, Qin and Gansu. Over the past 600 years, the descendants of immigrants have spread all over the country, with hundreds of millions of immigrants at home and abroad.