...bah, does it or does it not send more info than vice-versa?
The Heart in your sense is a strictly Spiritual thing, and let me give you my opinion, keep in mind that at least one half of Enlightenment is purely Spiritual and not Philisophical.
The Soul is the individual human form, and is of course "Mortal", you have a Heart(sub-conscious) and a mind(conscious), and the sub-conscious is the faculty of all emotion, and thus does have a tremendous effect on the conscious, in fact anything that is not intellect is effected by the Heart, ie Ethics, your morality is very much governed by your "emotional intuition", love/hate, right/wrong, kindness/meaness, good/evil, these things all exist in the Heart, but they most certainly can have a great effect on the mind, they can take complete control of your mind and thus control your "will", in fact the majority of human action is controlled by the Heart.
Basically anything that does not take place on an intellectual level is influenced by the Heart, it is an absolutely vital part of the human experience.
"A sword will pierce even your own Soul, to the very end, so that the Thoughts from many Hearts may be revealed" The New Testament
"I swear oh lord, their eyes you have closed, to this day you have not opened them, this people's Heart is waxed, and their ears are dull from hearing, lest at anytime they should hear the word, and see with their eyes, and "KNOW" with their Hearts, and I shall heal them"
The Spirit is YOU, Awareness, pure Awareness, untouched by time, you are Eternal, you are One with Space, NO FORM, Indestructible, the Light does not die, Immortal Spirit, Mortal Soul.
"I will clear a Space for you in the darkness and fill it with Light, where you will shine for all Eternity" Jesus, not his exact words, I do that sometimes and there is a reason.
"If anyone adds or takes away from the words of the book of this prophecy, God will take away that person’s share in the tree of life and in the holy city, which are described in this book"
The very end of The New Testament, the reason why it says this is because the Roman Empire is trying to gain control over the minds of the masses in the 4th century AD, it doesn't want anyone messing with it and revealing the Truth to which Jesus was trying to convey.
Cause and effect, trust your Intuition, it is a genius.