This is the world of instincts and physical perceptions. As in Abyss, Cliff, Diving, we are talking here about delving into the unconscious. This image often points to the world of the feminine and is a warning that the male archetype is too dominant. Women, particularly, but men as well, will find their center and their own identity deep within themselves.
Social or economic decline. Fear of being destroyed. How did you descend? Where did you end up? Be clear about what you really want and where you can get the energy needed for the task.
To dream of a descent - by elevator, stairs or otherwise - means you are ready to explore your inner feelings.