A memorial for the undead

That's right- the un-dead as in "not quite dead yet". A coworker's husband's grandfather is in ailing health and quickly slipping away, so he ordered the family to come to a memorial (for himself) tomorrow at noon. People are driving cross country right now as I type this, in an effort to reach this man's house by noon. My coworker said she doesn't really know how to feel about it. Is it sad? Is it happy? What do you say? "Gee, sorry you're gonna die soon. Say, has anyone spoken for the credenza in the guest room?" I think it's kinda cool that he's doing this- I mean how often do we REALLY know when it's our last chance to say goodbye to someone? In this case, everyone will gain the peace of mind that they had the opportunity to hold his hand, say I love you, make amends, or whatever they feel needs to happen. I imagine it's going to be a rather moving memorial but a happy one, if not right at that moment. I think the family may look back on it fondly (well, at least positively) and be glad they got the chance to say/do/experience things with him before he's gone.