A chaperone watches over closeness, so the figure is read as an inner rule or an outside eye that keeps desire in check. Some dream books see it as protection, others as a feeling of never being trusted alone.
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.