Some priests consider that the best sermon they will preach is the one they give when they are lying, dead, in their coffin before the altar of the parish church. A coffin poses ultimate questions: What's life all about? Why are we here? What does it all mean? Like a good sermon, a coffin asks questions without easy answers; you have to answer its questions for yourself.
Monsignor Joseph Mary Cusack of Mosman parish in Sydney was one such priest. When the doctor told him he had only months to live before stomach cancer killed him, he set about turning his death into a parish event that would give his parishioners an ultimate instruction.
On the last possible Sunday, he went to each of the four parish Masses, sat in a chair on the sanctuary and told the people about his imminent death. Then he went back to his bed, which had been moved into the presbytery dining room, and waited for the end. - Fr Edmund Campion, Madonna (click below for full article)
http://www.madonnamagazine.com.au/articles/janfeb09/0901campion.html