Let me make it quite clear that when Christians say the Christ-life is in them, they do not mean simply something mental or moral. When they speak of being "in Christ" or of Christ being "in them", this is not simply a way of saying that they are thinking about Christ or copying Him. They mean that Christ is actually operating through them; that the whole mass of Christians are the physical organism through which Christ acts--that we are His fingers and muscles, the cells of His body.