Polar night, when the sun does not rise for weeks, stands for a long inward stretch, a season of waiting and endurance. Tradition reads it as patience through darkness that does eventually lift.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.