The health of the different individual cells comprises the strength of the whole. If we only wanted to form a few super cells, the body would not be able to rightly function and die. The cell’s strength come from their neighboring and differentiating cells.
Paul cared for the health and strength of the church, the body of Christ. Even though this seems and is mystical in a sense, it is very real. This is a major truth that needs to shape and influence how we think about our participation in the local church. Paul himself was shaped by it and ended up in Crete and elsewhere building up the body of Christ. We all have a call to bettering one another.