This is a spoof of the Chick tract of the same name. The original can be found here.
In this story we see that Jack Chick endorses the biblical error that deep thought and emotions come from the heart rather than the brain, something that science refuted many years ago.
A heart pumps blood! Nothing more and the very unprofessional doctor in this tract should realise that.
Side note: Have you ever noticed how the characters, who are being bible bashed, in these tracts, tend to look and act like total morons? I guess that's what you need to be to believe Jack Chick's preaching.