Castiel and Dean were never meant to be together. Nobody in this world could have predicted that the little boy from Kansas who grew up salting doors and stabbing things would end up saddled with a heavenly creature beyond human comprehension who is barely contained in the borrowed fleshed of a devout salesman. Dean grew up fearing supernatural things like Cas. Hell, Castiel isn’t even supposed to feel emotions.

Too many times, they are on the wrong sides of the fight, mistrusting and hurting each other. Everything keeps ripping them apart, from death, to God, to the show’s writers, but most of all themselves. Their story has spanned heaven and hell, purgatory and earth, and by now they are both broken and tired, having lost more than anyone deserves to lose. Yet they are still fighting. And somehow they keep clawing their way back to each other, because despite destiny, despite the very definition of what they are, they’ll choose each other. They are a celebration of free will. They are two small, beautiful things who refuse to let go despite the entire world telling them that they are wrong. They are a miracle.