The Make A Wish Foundation is a charity that is there to ease a child's mind when death calls, and they should be supported by everyone. Please visit their web site, and if nothing else, send them an email of encouragement.
I had a very tiny part in helping to grant a few make-a-wish wishes several years ago, when I worked for Disney. Mostly just picking out merchandise from the store to send as part of a local "wish-granting." Even the tiny role I played was a magical experience... the make-a-wish people really know what they're doing, and never lose sight (or let you lose sight) of why....