This blog post is a worthwhile read for those with ME, or other chronic illnesses, who have struggled to accept a much-diminished life: http://www.dreamsatstake.com/2017/01/on-finding-purpose.html "In the end, the value of your impact on the world has little to do with its scope. If you've touched even one life, if you have loved even one person, if you are kind to others and are doing the best you can with what you have, then you are making a difference. To exist in and of itself is to have purpose. To breathe, to be fully present in each moment, to show love and compassion in whatever small way you can – this is what gives our lives meaning. And this is why I no longer doubt that my life, and every life, has infinite value."