Live your life so that the fear of death can never enter your heart. When you arise in the morning, give thanks for your food and the joy of living. And if perchance you see no reason for giving thanks, rest assured the fault is in yourself.
Peace of mind has nothing to do with the external world; it has only to do with our connection with God. Love really is the answer. We're here only to teach love. When we're doing that, our souls are singing and dancing. When we remind ourselves that we are spiritual beings, that life and love are the flame eternal, that's when our soul is nourished.