TED-Ed Lesson: As a death doula, or someone who supports dying people and their loved ones, Alua Arthur spends a lot of time thinking about the end of life. In a profound talk that examines our brief time on this planet, she asks us to look at our lives through the lens of our deaths in seeking to answer the question: "What must I do to be at peace with myself so that I may live presently and die gracefully?"