You will experience unexpected events not because of what you have done or failed to do; but because that is the nature of life. Planners and strategists and even the just and unjust experience the unexpected. For those who live as though nothing surprising can happen to them; heartbreak and disappointments are inevitable when it does happen.
The Bible says, "That you may be sons of your father in heaven; for he makes the sun rise on the evil and on the good, and sends rain on the just and unjust" (Matthew 5:45).