SPN Theories

Theory 25:

Castiel left the empty, he then went to the Bunker, it was quiet. Dean and Sam were in Heaven. Castiel wanted his family to be safe in Heaven, he knew that they were in Hell and he knew how they suffered. Castiel then saw a picture of all of them together. Castiel missed them, he missed Jack, he missed his family. 

Castiel walked around, he then saw a picture of the Impala, he knew how much Dean loved that car, I mean it was almost like Dean's other half. Treating the car with a lot of respect, making sure that it was tip top shape, shining and making sure her engine could be heard miles away.

Castiel then read some books in the library, he knew how much of a bookworm Sam was. Castiel smiled at the thought, he could almost hear their voices, He could hear Dean saying that he had food and beer, he could hear Sam saying that there was a way to kill a monster or a spell to help lure out a monster on a hunt.

Castiel could also hear Jack trying to help with the spells and reading the lore books. 

Castiel: I miss you guys. It's hard to believe you guys are gone.

Cas then walked around and found Dean's mancave, he smiled because he remembered how happy Dean was when he finished building the mancave and getting it all together.

Cas then remembered when Sam fought hard to find Dean when he was a demon and missing. Castiel also wanted his friend back, his family. He helped Sam find Dean even though he lost his grace due to Metatron.

Castiel then put on some music, he put on the song Carry on my wayward, then he looked back at the bunker, he smiled at the memories he made with them, he then had some tears in his eyes because he couldn't see his family ever again.

Cas: Goodbye you guys. Stay safe. I hope wherever you guys are, you guys are staying safe, driving that Impala of yours Dean. I hope Bobby and your parents are with you guys as well. Jack, I hope you met your mom. She was a great woman.

After that, Castiel then closed his eyes, there was bright light, then he vanished. His angel blade fell to the ground. Castiel didn't need it anymore. There was no more danger lurking in the shadows.

The music was playing, it echoed throughout the bunker and it could even be heard in the garage. The music played on and on as Cas put it on repeat till the stereo died.