Over the mountains: it means overcoming difficulties.
I hate to be called to the mourning hall by a man. Many portraits of great men: mourning halls are related to death and generally represent the end or past of things. Great men represent great events that have been done before, and their efforts and portraits are generally related to past memories. It may imply that something is coming to an end and you are about to enter a new stage of your life, or it may mean that you don't want to recall the past or face it. Good luck!