Marrow
The fatty interior of a bone — concentrated nourishment from the centre of the structure.
Marrow in a dream is the dream's image of concentrated nourishment from the centre of the structure that held a creature up. Marrow is not surface food; it is what was inside the bone. The dream brings the marrow when something in your life — an inherited family practice, a deep teaching, an interior wealth in a tradition — is being taken from the centre of the structure rather than from its visible surface. Marrow taken slowly from a properly split bone is the dream affirming the careful use of an interior supply. Marrow scraped at with the structure still intact, hardly any yield, is the dream noting that the deep good is really there and the access has not been opened enough for it to actually feed anyone.