That was a long time ago, in the mid-1980s. As the railway was washed away by water, a large number of passengers (tens of thousands) were stranded in Hami. Merchants in Hami didn't take the opportunity to raise prices, and they didn't need money to eat and drink. Youth hostels provide free accommodation and other caring activities, which quickly spread throughout the city and expanded the scope of assistance to individual social residents. So after the railway was opened to traffic, the passengers thanked the Hami people for their love and posted the banner of "Hami Spirit". It's that simple.