We use digestive metaphors to describe mental processes all the time. For instance, when pondering a thought we will use the words, “I’ll chew on that.” Also, we easily exchange the phrase “ruminating over” for mental activity.
Scientist/theologian Emanuel Swedenborg called this kind of symbolism correspondences, in which natural processes are analogs of higher mental and spiritual dynamics.
Thinking is much like eating and digestion. Therefore, we can help discover invisible realities from visible ones using this profound relationship. This can then help us learn more about the true steps towards our personal transformation.
For instance, some people can mentally digest more subtle ideas from concepts than others. However, we can learn from anatomy that true digestion not only includes getting more essential elements distilled from a compound substance but whether or not those essential elements are actually absorbed into the system and become the fabric of one’s inner being.
A hypocrite or deceiver can learn to intellectually distill noble notions, but these principles are not absorbed by such a person’s inner (spiritual) life.
The intellect may ruminate, but it is the heart that digests!
For instance, a person ruled by self-centered love uses information (mental food) differently than another person ruled by mutual love. The former uses knowledge for pretense and to impress, while the latter uses knowledge in innocence.
The former is actually insane, while the later is becoming an angel.