It is only recently that the intelligence system of the heart was discovered. The heart is not a pumping machine. It is an intelligence system.
It is the most intelligent system of all our brains, with its own receptors, its own electromagnetic force, from 45 to 70 times more powerful than the brains of the neocortex, and the only force capable of changing our own DNA.
It can turn the mortal into immortal, glial cells into heart cells, mortal center into immortal walls in any cell.
It is, in fact, the heart that turns each one of us from dying cells into living cells. No one of us is human until the heart beats. And vice-versa, that first beat of the heart is what makes us human.