Nothing addresses the uniquely personal need of an individual believer in Jesus Christ and at the same time demonstrates the corporate need of a body of believers like a sermon. A person with a message for a body of believers addresses that group with a message that God has laid on his heart to speak about- and everybody needs to hear it. It's an amazing demonstration of Divine sovereignty. Get the people there and speak to them. God does it all!
But in the midst of this corporate gathering there is this unique touching of the Holy Spirit in each individual heart. Only God would know who needed to hear the message. Sometimes the people wander into a church and sit down in a pew without knowing why they are there-until they hear the sermon. Some come and sit down with the attitude of the sixties:
"Sock it to me, God". All were there.
In the miracles of Christ, the method of reaching people was always the same: Meet the need they felt was paramount, then bring them to their most important need as Christ saw it. Meet them at their agenda, and bring them over to His. But He always met them right there where they were first.
The individual need of a human heart is always paramount to the Maker of that heart. You could be part of a worldwide audience watching Billy Graham weeks or years after a sermon was preached, but God touched your heart right then and there, and your need was addressed and met. It's the personal touch of a personal God-right there where you are!
Tell me what you think, I'm just thinkin out loud.