Dean knew better than anyone the true value of a human soul; he had sold his own soul in a deal for his precious brother's life, giving the most valuable thing he possessed. Nothing but an equally valuable soul can initiate the kind of deal which Dean was once so willing to partake in, and his soul was, and still remains to this day, one of the most valuable in existence. It was for this reason that on the night of his eventual death, as his soul was ascending to heaven to join his departed loved ones, a magnificent event occurred; 7 shooting stars were seen streaking across the night sky in brilliant contrast to the darkness surrounding them. To the world, this would just appear as a seemingly random, yet beautifully miraculous event, but to Dean, they meant something quite different, something which warmed him to his core. To him, those wonderful trails of bright light meant the souls of his mother and father, dear Sam, Bobby, Ellen, Jo and Ash, were aware of his ascension and were awaiting his arrival in the heavens, to greet him once more as a son, brother, and friend. Their reunion would be bittersweet, compensating for all the years of self torment at his failure to ensure the safety of his kin, especially Sam, whom he couldn't save eight years before. Castiel would be there too; he would not miss Dean's arrival for anything, if only to see the expression of wonder on Dean's delicate face transform into one of peace, an expression that Castiel had ever longed to see on his worn hunter's features. Together they would rest in harmony, complete as a family which runs deeper than blood, until the end of time. Dean was finally home where he belonged, he was done and there was peace.