imagine your body is infiltrated by rodents. these rodents are savvy, and they know if your body feels different that you'll go to the doctor, they'll be exposed, and their stay will be over. so, they work as a team to perform all of the functions in your body. they process your food, send messages along your nerves, and pump your blood through your veins like an old fashioned water spout. it wouldn't be until you severely severed a limb that you noticed the furry little creatures making your body work. how do you know this isn't happening? how can you be sure? maybe it's bugs. roach sized, or ant sized, or gnat sized, or much much smaller. how can you be sure that your organs aren't made entirely of microscopic bugs all working together assembly line style passing buckets like people trying to put out a fire in the old west? you can't be sure. if you look down on earth from space, it's doubtful that you would imagine millions of filthy two-legged creatures roaming over most of it. the same way that when you look down at a rash on your skin, you don't see a little microscopic civilization trying their best to make ends meet, or mini park rangers guiding packs of children around and showing them the majesty that is the largest blister on your skin. when you're inside of it, you see graduation photos, ribbon cutting ceremonies and standing ovations. when you're looking down at it, you see itchy, splotchy, blistery grossness in desperate need of some cortizone. so enjoy yourself until earth gets an antibacterial fumigation, and know that when you rub anti-itch cream on your rash - you're killing someone's dreams.