Christ declares, «Abide in me, and I in you. As a branch cannot bear fruit of itself, except it abide in the vine; no more can ye, except ye abide in me» (John 15:4). A branch derives life from the vine by virtue of its union with the vine. Similarly, Christ is the vine, and we are the branches. There is a vital, organic union between us. We draw on Christ's life through the Holy Spirit, who dwells in us. We must, therefore, abide in Christ by cultivating close and constant communion...