We know that when one of us falls he falls alone, but no man is saved alone.  He who is saved is saved within the Church, as a member of the Church, in union with the other members . . . If you are a member of the Church, your prayers are required for all the members of the Church . . . You are necessary to the Church so long as you are of the Church . . . The blood of the Church is prayer one for the other and her breath is praise of the Lord.

Alexei Chomiakov: Collected Works.