In many ways, I was tempted to put this lesson at the very beginning of this series. After all, death for the Catholic is not the end, it is the beginning. For those who die in Christ's grace it is a participation in the death of the Lord, so that they can also share his Resurrection.
Death is the end of our earthly life.
But there's nothing morbid about thinking about it. Sometimes people fret about death, but they still often plan their funerals. It's a sensible thing to do. And planning for the life after death is even more sensible. Remembering our mortality helps us realize that we have only a limited time in which to bring our lives to fulfillment.