A tree that speaks is read as old wisdom finding a voice — patience, memory and nature addressing you directly. Its words are often taken as advice from a deeper, slower part of you.
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.