Each Christian is a powerhouse of grace reaching out and touching a neighbor by example and prayer. We are part of the Body of Christ on earth and we affect that Body by everything we do and everything we are. A broken heart fills that Body with a throbbing loneliness. A smile makes it happy. A joy makes it thrill and a pain makes it cry.
Sin makes it recoil in contortions of rejection and holiness builds it up to renewed vigor.
Grace is its life-giving blood, constantly renewing dead cells and revitalizing healthy members. He has given a function to perform, a part to play and a position to hold. Each one of us is vital to the proper functioning of the whole body and though our particular duty is unseen and unheralded, the whole body would suffer without us. We need Jesus, but He also needs us. It is not because we can add anything to Him that He needs us, for He is Infinite in all His Perfections.