The farmer illustrates that you reap what you sow. Spiritual reproduction means that you reproduce after your own kind, whether you want to or not. Therefore what you are becomes critically important as you invest in others. You have reception and transmission. Every follower of Christ must view himself as a link between generations.
Reception is the privilege, transmission the responsibility.
How often you would like to reach inside another and alter their perception of reality. But they cannot, and you cannot force it. Man is never more insecure than when he cannot create, measure, and control. The work of man can be created, measured, and controlled, but the work of God cannot. If you try, you will inevitably become abusive in your interpersonal relationships, trying to force people into meeting your expectations so that you can accomplish your objectives.