I am sure I have heard this several times from places I can't recall, but it's not already in the Gaia Quotes database, so I add this profound insight from the fields of psychological healing and spiritual evolution. It sure has helped me.
There are three things, after all, that a poem must reach: the eye, the ear, and what we may call the heart or the mind. It is the most important of all to reach the heart of the reader.
We disparage reason.
But all the time it's what we're most concerned with.
There's will as motor and there's will as brakes.
Reason is, I suppose, the steering gear.