The eaves shelter the edges of a house, read as protection at the margins and a place of nesting. Listening under them stands for overhearing what was not meant for you.
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.