The mast is read as the upright core that holds everything else in place. Dream books link it to inner strength, principles and resilience — the part of you that stays standing when the weather turns.
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.