Po indicates that (in the state which it symbolises) it will not be advantageous to make a movement in any direction whatever.
Image de l'hexagramme Nø 23 :
(The trigram representing) the earth, and (above it) that for a mountain, which adheres to the earth, form Po. Superiors, in accordance with this, seek to strengthen those below them, to secure the peace and stability of their own position.