The trunk is read as the core self and what carries you: stability, character, the backbone of a life. A thick one points to resilience; a cracked one to strain at the centre.
Does the traditional reading fit your dream, or did it mean something else to you?
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.