We abide in Christ like a branch abides in a tree, but how do we do that in day to day life?
Paul Brand, the hand surgeon renowned for his discoveries in leprosy and his vibrant Christian faith, wrote often about the parallels between the church as the Body of Christ and the human body. The metaphor Jesus used in John 15 about the relationship between Him and His people, that of a vine, is another powerful illustration of the intimate, dependent, and fruitful relationship we have with Christ our Creator and Sustainer.
As each organ, liver, brain, kidneys, and heart, is an integral part of the human body, so the branch is an integral part of the vine and each man an integral part of the body of Christ. More precisely, as each human cell is vital to the life of man so each plant cell is to the life of the vine and each believer is to the body of our Lord. To abide in Christ is, therefore, analogous to the relationship between a cell and the body and a branch and its vine.