Mourners are traditionally read as grief that is finally being given room. Dreaming of mourning something does not foretell a loss; it marks a farewell to a chapter, a role or an old hope.
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.