The source of emotions - spirit, courage, love. You already know what happens when you don't.
Many people view other drivers as obstacles on the road to where they're going.
We tend to forget they're real human beings, just like us. They have struggles and troubles, joy and despair. If the majority of people are invisible to you, and you are invisible to them, the result of not seeing one another is indifference. We create a cold social climate. Care and consideration must be given away in order to flourish.