We're very insignificant.
I saw the coolest thing today. Russ, our resident astronomer, brought his telescope and solar filter in today and set it up on the grass outside the office. We were able to see Mercury transitting across the face of the sun. We could also see a giant sunspot that was bigger than Mercury, and probably bigger than earth. It was incredible. Made me remember how insignificant we really area. When you get some sort of scale and perspective like that, you realise how gigantic our ball of fire is that keeps us all warm and makes the planet work.