The underground takes you below the surface: you move through areas you usually don't see – feelings, fears, unconscious paths. If you lose your bearings there, you are looking for footing in a confusing situation.
An escalator moving in the wrong direction can show that outside circumstances are working against your efforts. You may be trying hard yet still not moving where you want to go. The dream can express frustration about having little influence over a system.
Climbing out of a pit
Climbing out of a pit can show that you are working your way out of a difficult phase. The path may be exhausting, but you are no longer completely trapped. The dream can be a strong image of personal strength and growing hope.