"Therefore, confess your sins to one another, and pray for one another so that you may be healed. The effective prayer of a righteous man can accomplish much.”
James 5:16 NASB
Prayer improves The Body's range of motion. It applies God's grace to The Body parts of a church that have too much friction between each other, and too little appreciation for one another.
The longer you pray with one another, the more grace you apply to each other. The less you pray, the more you get on each other's nerves. So, we pray.