Stretching and snapping back, the rubber band stands for flexibility under pressure. Dream books read one stretched too far as tension close to its limit.
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.