Our pastor was on vacation so we had a lay speaker deliver the sermon on Sunday. (Sidenote: is it a sermon if not delivered by a minister?) He was absolutely awesome, and I would've been perfectly fine with staying in church 'til 12:30 or even 1 just so that he would have more time to elaborate.
So Sunday's sermon was on being prepared for bad things to happen, not blaming God when bad things happen, and trusting God when bad things happen. (This is something I could have really, really stood hearing four years ago.) He compared life to football--there are two kinds of turnovers (things that get you off track/make your head spin/turn your world upside down): fumbles (when something you're planning and working on falls through) and interceptions (when something completely unforeseen pops up).
So, basically, you should expect bad things to happen. You know, don't be a complete pessimist, but be realistic. If you hang around Earth long enough, something bad will happen to you or someone you know. But more important than expecting bad things to happen, you should expect bad things to happen AND be ready to roll with the punches.
The new concept: Start prepping yourself today to lose everyone you love. It's going to happen. Look at every meaningful relationship you have--either you'll go first or they will. Make every second count--every single one. Really live your life to the fullest--stop saying it, and just do it. Figure out which people are most important, and then spend every free second you can with them. Stop comforting yourself with platitudes like, "We'll be reunited in heaven," because while you both might be going there, it won't be what it was on Earth. The Bible says that husband and wife will not be rejoined as husband and wife in heaven (and maybe thank God for that--I don't even want to think of my mom, my dad, and my step-parents having to figure out living arrangements).
He said that he spends every Sunday afternoon with his dad because even though he plays golf four times a week, has the energy to date his much younger neighbor, and actually just shot his seventh hole-in-one last year, he's still 88 years old, and he's still going to die.