Look at the references he uses to come to this conclusion. It is by no means his own idea and work.
We should know by now, that just because something is projected by the "official" academia, does not make it the only theories, or right for that matter, i find it interesting to also pursue those who have been barred or excluded from academia, and that way get a bigger picture than the officially projected one.
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To me the heart is the soul and has always been that. Even our languages reflect that. "He's got no heart", "hard hearted", "heart broken", "captured my heart" etc.
But i respect others opinion and theories, for out of all the theories at some time we get a theorem.