I'm not a mechanic by any stretch of the imagination, but I do know that a car without an engine just won't run. We could roll it down a hill, or tow it up one and give it some semblance of movement, but it has no power of its own. In a different analogy, without a heart, the body won't live. No doubt, technology and pharmacology can keep a body in stasis for a while but that kind of existence is artificial, hollow, and once the body is disconnected it dies, like dead. No heart, no life!
What may come as a surprise to the modern church is that the heart of Christianity is not predominantly, “Jesus loves me this I know,” as we sang in Sunday school,