Tianzhu-Qing: Hold on. A big pillar that can hold up the sky. According to ancient myths and legends, Kunlun Mountain has eight pillars. Later, it was used to describe people who can take on heavy responsibilities.
The sea and the sky are the same color-a metaphor for overqualified and superior ability. Yuan Zaju often refers to the general as "the sky is a white jade column and the sea is a purple golden beam", so it is a cloud.