An epic struggle between good and evil is read as an inner moral conflict. Dream books see it as values being tested, and as the work of choosing between them.
Where in your waking life have you met something like this lately?
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.