Brushing and tending an animal or yourself is read as care for appearance and bonds. Tradition sees it as attention paid to how you present yourself and how you look after others.
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.