Close your eyes and imagine your ideal day at eighty years old (or one hundred, in the case of the ninety-year-old!). Vividly imagine it. What are you doing? Who are you with? Where are you? How do you feel? The exercise forces you to begin with the ideal future end in mind—it establishes a personal definition of a successful life that can be used to reverse-engineer the actions in the present to achieve that desired end.
