Every man and woman, has, at some point in their lives, felt the crushing realization of their mortality; that they ARE going to die. That death is for all eternity. With absolute surety. The first time it happens, it is crushing to the spirit and we ask ourselves the really important questions of the purpose of our existence.
Cancer or not, we all share the same fate; mortality. Coming to terms with that realization we do not live forever and that eternity is a long, LONG time, we each come to our own conclusion just what that might mean for us as an individual. Some come to a spiritual reconciliation, others that more hedonistic philosophy about how to spend their remaining days. Then the second blow from the hammer hits when we realize we have no idea how many remaining days we may have. Fear of illness taking one early in life is only one of a multitude of scenarios that could happen. Eventually we accept our fate as one that really can't be altered in any real sense and we decide to enjoy this gift of life we have now to it's fullest extent.
We all have an expiration date, and, like the firecalc chart, all we can really do is try to have the best quality of life based on the choices we have available to us.