When a person experiences getting hit hard in the head, there is often a moment of shock and fear that can last for a brief moment or a lengthy amount of time. This sensation can render a person completely incapable of proceeding if they haven't been trained to overcome and move forward. Our spiritual life is similar. Training in righteousness is not always about studying the scriptures or listening to a sermon. I sometimes involves hard things that can either strengthen us or cripple us depending on our ability to overcome.