Anne at 2011-11-17 19:23:52:
To me, from the heart vs from the mind is emotional vs rational, universal vs individual, objective vs subjective. It is genuine. It is giving without condition or censorship. There is an undeniable truth in the heart.
It is very much different from "sentimental" which has a connotation of self-pity and neediness and which possibly comes from ego (?).
Like there are some people in your life with whom you can be entirely yourself - no holding back, no mask - give your story entirely - no holding back, no shyness, no "but others normally do it that other way" because you are not others. If it is true to you, do it. That's often when and why it works. It is refreshing honesty.