The purpose of the past: to give us pleasant memories, wisdom and lessons to learn, not endless regrets. The purpose of the future: to give us hope and motivation and a place for our dreams. To warn us of possible risks, not for needless worry. The purpose of the present: to help us grow by applying the lessons from our past. To enjoy and appreciate the gift and beauty of life. To do what is necessary to make our dreams come true. To heed the warnings coming from our future.