A chestnut hides a smooth fruit inside a prickly shell, so it is read as goodness behind a rough exterior. Autumn chestnuts are also linked to warmth, gathering and simple comfort.
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.