It just hit me HARD

I was just over at my Dad's house helping him pack up for Japan. He'll be over there alone on sea duty for 2 years. I hadn't really faced it until now. Watching him pack though, it hit me like a ton of bricks. I'm a mess. Can't quit crying. I can't even explain what this feels like. My Dad is who I call when I need advice, need help with something, or need spiritual guidance. E-mail's just not gonna cut it. Blah. I can't even write anymore about it right now. I'm sobbing too hard.