The speaker from the heart is different. He may have the skills of the master of reasoning. They are however only tools he uses as a true rhetorical virtuoso. He has abilities not found in the reasoning speaker. He combines clear diction with simple argumentation, and instinct tells him what to say and how to say it.
Language is united with ideas.
He knows the secret corners and aspects of the mass soul and knows how to reach and touch them. His speeches are masterpieces of declamation. His voice reaches out from the depths of his blood into the depths of the souls of his listeners. He brings to expression the secrets of the human soul. He rouses the tired and lazy, fires up the indifferent and the doubting, turns cowards into men and weaklings into heroes.