The ejection seat is read as a sudden, total exit from a situation that feels out of control. Dream books link it to the wish to escape quickly, and to leaving something behind all at once.
When this appeared in your dream, what were you feeling?
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.