The high jump is read as raising your own bar and trying to rise above it. Each new height reflects ambition, and the fear of knocking the bar down along the way.
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.