Climbing in a dream usually reflects deliberate effort toward a goal -- the sense that progress is possible, but only through sustained work rather than a shortcut. A climb that feels steady can mirror confidence in your own pace, while one where you keep slipping back often names frustration with how slow the progress feels.
Signs can degenerate the actions of the celestial bodies and neutralize their positions, but they can also improve them. - Picatrix (Andalusia, ~1000.AD)