A home gym is read as self-discipline and the effort to build strength on your own terms. Dream books also see it as pressure you put on yourself to keep improving.
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.