Carl Jung, was a pioneer in psychotherapy. He worked with myths and symbols, and the relevance of dreams as being a window into the unconscious mind.
A friend of mine had a new horse. His stable was in an old farm building, and since he had arrived, he always stood at the back of the box, and avoided the middle of the bed.
The evening I visited, he showed early signs of colic, and was very quiet and subdued, with no movement in his guts. The vet was called, and he relaxed after a while, and back to eating his hay.