We do not truly comprehend any spiritual thing until we ourselves give it away. Spiritual gifts increase only by using them, where as material gifts normally decrease in value by usage. It is a karmic law of in and out, and what Jesus really meant when he sent the disciples to “cast out devils, and cure all kinds of diseases and sickness” Matthew 10:1 or to “go out to the world and proclaim the gospel to all creation” Mark 16:15. He knew we had to hand the message on before we really understood it or could appreciate it ourselves.