Life is incredibly unpredictable. Many people live to a ripe old age, but there are so many who have no idea when death is going to knock on their door and are taken without notice.
Having done hundreds of funerals, I see up close what that kind of death does to a family. The loss is almost overwhelming. There was no opportunity to say 'good-bye,' no sense of closure or the possibility of mending fences or expressing feelings unexpressed. Sudden death is something that deeply affects mourners, often for the rest of their lives.
Of course I believe that one of the ways of overcoming some of the devastation of losing a loved one suddenly is to express oneself through the writing of a eulogy. The act itself is therapeutic. Sitting down with a piece of paper in front of you and writing the life story of one you have loved (or not loved but need to make amends) is psychologically healthy. The problem is that, even when the memories are there and you can list them on a piece of paper, there is little cohesion to your thoughts. That's where "The Eulogy Writers" come in - or any other eulogy writing service, to be fair.
Writing a eulogy - or giving information with which to write a eulogy is a way of speaking to the dead. It makes amends as we tell the life story (almost always in positive and/or glowing terms) and gives the healing process a helping hand.
So, when death comes, write. Write a eulogy or have someone else write it. Allow your memories to purify your soul and the words of the eulogy to tell the life story in such a way that you know the one you lost would be pleased.