A to-do list is read as the weight of open tasks pressing on the mind. One that never shortens points to overload; ticking items off speaks of relief and order returning.
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.