Marrow lies at the very centre of the bone, so dream tradition reads it as the core of the self, inner strength and what is felt “to the marrow”.
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.