The washing machine turns and churns until things come out clean, so it stands for emotional processing and going round in circles before relief. Folk tradition reads it as a fresh start after a messy time.
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.