"Heart" has four words in it:
The "Heart of Listening" requires us to have not only an ear, but to hear with our whole being; it is energy work, and the heat in a healer's hand is a potent form of energy. Working with real, whole human beings is a hot-blooded endeavor that is, above all things else, an art.
Perception is the visual, external component of intuition, and insight is the contemplative, internal component of intuition. It is "in-sight"; it is the internal seeing of self and other. A visionary is someone who trusts what they perceive outside and what they sense inside, and values both equally. Many people can hold the parts, many people can hold the whole, but very few people can hold the parts and the whole".
-Hugh Milne, The Heart of Listening 1-