Nobody is a whole chain.  Each one is a link.  But take one link and the chain is broken.  We need each other.  You  need someone and someone needs you.  Isolated islands, we’re not.

From Colossians 1:9:  “For this reason, since the day we heard it, we have not ceased praying for you and asking that you may be filled with the knowledge of God’s will in all spiritual wisdom and understanding,”