Transcendence. By using concrete and tangible language, he can transport audiences to another place and actually paint a portrait that they can see in their minds’ eye.
Repetition. Used artfully, it helps to clearly emphasize one idea and make it memorable.
Gestures and voice. He uses gestures to punctuate nearly every sentence. He also uses his voice effectively: He slows it down, lowers his volume, and pauses for impact.