How do you think he feels?

I started thinking about this today, back in February of 1990 my dad lost his brother that was 18 years old in a freak boating accident that drowned him, and the other day we were listening to the Toby Keith song Cryin for me, and i could see a twinkle in his eye I knew what he was thinking, so I started thinking and to tell the truth I can't even imagine what it's like to lose someone that close like my dad did. My question is I know he feels bad but if you have had something like this happen do you like to talk about it or should I just let him be?