I know exactly how you feel right now, Mark.

The thing I learned then, and I hope you learn now, is that he will always be with you, in your memories, in your heart, and in everything that he left behind. He obviously left a lasting impression on not only you and your family, of course, but on his friends, his city, his country and his world.

At his funeral, find the funniest story you can about him, and tell it with as much gusto and verve as you can. The resulting laughter will be as cathartic a salve as anything else in the world.