What do you mean? There are obstacles in the column, thousands of miles away.

As a mainstay, D ǐ zh ng Li ú stands like a mainstay mountain (in Sanmenxia) in the torrent of the Yellow River. Metaphor plays a pillar role of backbone or strength. -Hou Yuan Ke Zhong's "Genzhai Poetry" is also the mainstay and the center of water flow; In the middle of the journey, there is a big stone flowing.