Evening stands for winding down, taking stock and gathering with those close to you. Dream books read it as the later chapter of something, calm or a little melancholy.
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.