"It is the Spirit who gives life; the flesh is no help at all. The words that I have spoken to you are spirit and life." - John 6:63 ESV
Many people have clever things to say but Jesus' words are different. They have life. The person of God speaks the words and the Spirit of God gives.
Our body is great for certain things but not in this. We need more than what our body can tell us. We need what only Jesus can tell us. He alone has the missing puzzle pieces.
Simple. So simple.
I wonder who it was who thought to make a 'red letter edition' of the Bible. I'd like to shake that man's hand. He knew something special.