When we eat, our bodies break down the food and get from it both energy and materials for building and repairing the body. The process is similar on a symbolic level in the Bible. Food represents the desire for good and the insight that comes from that desire for good – goodness and understanding that come from the Lord. But to put them to use we have to take them in and make them our own – which is spiritual eating.

In Deuteronomy 18:1, 3, prophet signifies one who gives a sign, and dreamer of dreams one who performs a miracle. (Apocalypse Explained 706)