Years ago, a fellow named Ruel Howe wrote a remarkable book called The Miracle of Dialogue. He talked about the two forms of communication: discussion and dialogue.
He said discussion is a head-level enterprise. It is the sharing of thoughts, plans, and values.
Dialogue, Howe said, is an emotion-level communication. It is about feelings, fears, and needs.
Dialogue is the one which is absolutely necessary for a marriage to survive and flourish. Marriages fall apart not because of intellectual problems, but because of emotional problems.
What blood is to the body, dialogue is to the soul.