Funny thing is I was checking out your top albums of 2011 list and "Steep Hills of Vicodin Tears" - A Winged Victory For The Sullen
was playing on Youtube while I was reading the OP. Talk about a 'moment', felt like I was a kid back at the planetarium again.
I truly believe that until you can accept how small and insignificant you are in the scheme of the universe, you can't really appreciate the scale of existence as we know it. When it comes down to it, any human being who is "self aware" knows that most likely in 100 years they won't be remembered, thats just the way it is. You have to find meaning and happiness in the things you do day to day otherwise there really isn't any point to being alive.
I used to think like this when I was younger, I used to look at the sky and think about everything out there and just feel small. As an adult now with so much on my mind I don't think I've looked up at the sky the same way that I used to.