Rising up is good but rising up can be difficult sometimes, especially when you are enjoying the position where you are at the moment. Rising up takes you from where you are, to another position. Maybe a higher position or a lower position, he makes a move to change position.
Rise up!
Being in the same position can be comforting but you cannot know what lies ahead of you if you do not rise up. At least, being upstanding gives you an edge to stand up and see things before you.