A save point stands for safety and progress you can count on keeping. Dream books link it to the wish to lock in what you have achieved before taking the next risk.
Has this come up in your dreams before? What was going on in your life then?
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.