Sounds crazy, no? I suppose it does, but hear me out. There will be more questions in this post than answers, as the answers are yours alone.
What if you could accomplish everything you thought was important in your lifetime? How would you want to be remembered? What legacy do you want to leave?
Writing your obituary serves as your strategic life plan. Put on paper all the things that you would like said about your life. Was it a worthy one (in your judgement)? Have you done everything you want to do yet? Have you lived up to the reputation you wish to have? Is there old business to be cleaned up?
While writing your obituary seems strange and disconcerting, I promise you that doing it will lead you to live your life intentionally. Give it a try.