In the end, nothing really mattered, except there once were two brothers named Sam and Dean Winchester who saved their world with an angel named Castiel.
It didn't matter if they went to Heaven or Hell (who would want them?) when they died.
And it sure didn't matter to those people who never met them.
But.
Can you deny that they change the world? That they didn't save people? Destiny declared their fate long before they born.
And yet.
Dean never did say yes to Michael. Lucifer never had complete control over Sam.
They never did stop Saving People Hunting Things, The Family Business.
Maybe that's all it took.
Maybe destiny has you on one railroad track one day, and the next you're supposed to derail it (life's a bitch)
Maybe all it takes is two brothers named Sam and Dean Winchester and an angel named Castiel, to inspire you to say, Fuck this, I can do it.
And isn't that what really matters?