The war in heaven is not over; it has only changed venues. In the preexistence, we--each and everyone of us--exercised our faith in the future sacrifice of Jesus Christ. Satan and his followers were cast out. Those who exercised their agency and chose to follow Jesus, beginning with Adam and Eve, have been given the wonderful privilege of coming here to mortality to receive physical bodies, to rediscover our faith in Jesus Christ, and to grow in righteousness through the exercise of our agency as we choose to follow His commandments. These are exciting times. These are the last days, and the spiritual battle for the souls of the sons and daughters of God rages on around us. If we are to be successful in preserving not only ourselves but our families amidst these tumultuous times, then we must be informed. We must be vigilant, and above all, we must be prepared. The teachings of both ancient and latter-day prophets have been preserved to that end--to help us be prepared and to enable us to be victorious in our battles.