“He is very sharp.”, “He is very smart”, “He is open hearted”, “He is chickenhearted”.
Should we follow our heart or our mind?
From the medicine we know that when the brain stops the heart can continue working but when the heart stops everything stops.
The ancient scripture Brihadaranyaka Upanishad is clear that our essence Atma/Spirit, Purusha/ is in the heart:
II-v-10: This ether is (like) honey to all beings, and all beings are (like) honey to this ether. (The same with) the shining immortal being who is in this ether, and the shining, immortal being identified with the ether in the heart, in the body. (These four) are but this Self. This (Self-knowledge) is (the means of) immortality; this (underlying unity) is Brahman; this (knowledge of Brahman) is (the means of becoming) all.
Also Bhagavad Gita shows that the Light is in the heart:
13.18. That, the Light of all lights, is beyond darkness; it is said to be knowledge, the Knowable and the goal of knowledge, seated in the hearts of all.
The ancient Indians believe that the man thinking with his heart. May be is a time to realize this.
It might interest you to know that the heart’s electromagnetic field is the most powerful the body produces. It is approximately five thousand times greater than the field produced by the brain. The heart’s field not only permeates every cell in the body but also radiates outside of us. It can be measured up to eight to ten feet away with sensitive detectors called magnetometers.
Now you know the value of healing from the energy of the heart. Now you know the value of love. There is no difficulty that enough love will not conquer; no disease that enough love will not heal; no door that enough love will not open; no gulf that enough love will not bridge. No wall that enough love will not throw down; no sin that enough love will not redeem. It makes no difference how deeply seated may be the trouble; how hopeless the outlook; how muddled the tangle; how the great the mistake.A sufficient realization of love will dissolve it all. If only you could love enough you would be the happiest and most powerful being in the world.