We are all born into corruption, full of disordered desire. But God made us for something far sweeter. He made us to desire what is pure and true and beautiful. He made us for life to the full. So how is it that we are to move from the effects of corruption, our own and that around us, into the riches of what God gives? The answer is not complex, but it is painful: God means to replace our nature with the nature of Christ. That is, he means to slaughter our sinful person, and raise the person of Christ within us. He means to kill everything false about us until we become partakers of the divine nature. This is the only way into life. And there are no half measures.