Deadwood is the dry, lifeless part of a tree, and tradition reads it as what no longer serves you. Clearing it away is a classic image of letting go to make room for growth.
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.