Most of the time we try not to think about death, but the people of the Middle Ages didn't have that luxury. Death was always close at hand, for young and old, rich and poor - even before the horrors of the Black Death, which killed millions in a few short months. However, for the people of the Middle Ages death wasn't an end but a doorway to everlasting life. The Church taught that an eternity spent in heaven or hell was much more important than this life's fleeting achievements and there was much you could do to prepare for the next life in this one. As historian Helen Castor reveals, how to be remembered - and remembering your loved ones - shaped not only the worship of the people of the Middle Ages but the very buildings and funding of the medieval Church itself.