Sam is wrecked by the prospect of losing his brother. He realises many things. The lyrics help a lot, and i tried a lighter note during the end credits ^^ sorry about that!!
this is dedicated to jkgroves75 who suggested the song by LIFEHOUSE, with SPN clips. i managed to find nice and cute -if not heartwrenching- clips of the boys. it turns out i found more gorgeous material from Sam's POV.