To dream of a trampoline represents resilience or your ability to bounce back from difficult or emotional situations. You may be doing everything you can to stay positive, avoid problems, or remain upbeat. Your ability to keep going.
To dream of falling off a trampoline represents a loss of control, confidence, or motivation. A situation may be encouraging you to give up, or succumb to negative thinking patterns.
Example: A woman dreamed of jumping on a trampoline where the springs broke. In waking life she felt that her marriage was over. The broken trampoline reflected her feeling that her marriage couldn't bounce back from any fights, problems, or tension that kept coming up.
Example 2: A woman dreamed of jumping on a trampoline. In waking life she kept getting embarrassed that God wouldn't punish her husband for cheating on her. She felt that if she kept praying harder that God would finally give her a miracle. The trampoline in this case may have reflected her feelings that she had to keep reaching out to God each time God seemed to ignore her wishes.