I think this is good because it highlights the fact that if we are having a lack of fellowship with God in our own life, it does not only just affect us personally. It affects the whole body of Christ, because now we cannot as easily experience true fellowship with other believers. In fact I am not serving my brothers and sisters because I will not be able to invite them into the life of God, and reveal God to them. I think these categories really help to put our responsibility to the church into perspective. Thanks!