See how beautifully mind and heart complement one another:
The heart is an extremist; unbridled, it will allow a single emotion to fill its entire space. But the mind finds balance and harmony, even between opposites.
The mind is cold and aloof. Reality, to the mind, is but a curiosity. But the heart lives in a real world, moved by even the slightest touch.
When the heart listens to the vision of the mind, it too learns to carry a counterpoint of voices, even the voices of other hearts. When the mind listens to the depths of the heart, then its vision can go out and change the world.