The angels name was Castiel. As long as he remembered he had sat quiet and watched how the years went by. In an angels life one day on earth was just a second, just a blink. He had seen thousands of years go by, he saw how nations fell and wars were fought. Although this sounded terrible he always enjoyed watching the humans because there were also a lot of beatiful Things in this world.
One day he sat in the heaven from a man of Dakota. It was a rosegarden with a little stonebench in it's middle. This garden was Castiels favorite place from every other heaven he had seen. The soul of the man walked around watering his flowers, not knowing that he was watched by an angel. Castiel was looking at all the beauty in this garden as he heard how someone called for him.

"Castiel", the voice said. As Castiel listened close he could recognice the voice of the archangel Michael.

"Yes my brother?", Castiel asked and looked up into the sky.

"I have a task for you. My vessel was sent to hell and he is going to break the first seal."
Castiel was alarmed when he heard that. He knew that when the first seal was broken nothing could stop the demons from setting Lucifer free. If that happened apocalypse was about to start and the angels would have to fight, humanity was going to end.

"You want me to stop him?", Castiel asked and got up from the stone bench.

"No"

"What do you mean with no? Does it mean god comanded you to just let the apocalypse happen?", Castiel yelled. He was completly shocked about this and felt a bit angry. "So let me get that right, you are just going to leave humanity alone and let our brothers and sisters die with it? Haven't we watched over them all of these years and now you're just giving up?"

"Don't yell at me Castiel. We all knew this was going to happen and if it's not happening today it's going to happen maybe one century later or maybe two. You can't stop this Castiel so are you helping me or not?!", Michael answered a bit harsh. Castiel looked down to the ground and took a bit time to think. If I help Michael it's going to get worse, but what if I do this on his own? I could get the soul out of hell and there wont be any problem at all. Everything I need is a Name.
"Fine", Castiel said finally and looked up to the sky again, "Just tell me what to do"

"I see you're acting intelligent in this one. I knew you would"

Castiel sighed. He was so done with Michael but he needed to know the souls name.

"You'll rescue my vessel from hell when he broke the seal so I can fight when Lucifer rises. It's going to happen in one week."

Castiel simply nodded. "How do I find him? What's his name?"
Castiel didn't knew that the next thing Michael was about to say would change his life forever.

"His name is Dean Winchester."