Supernatural - What just happened?! (Season 8 finale)

I remember when Supernatural was all about monsters and demons and it was actually scary, a time when everyone was happy. But then something happened, something that they could never turn their backs from. Angels happened.

I'll be honest with you, at first it was all very strange and new, I wasn't sure what to think about it. Still with time I learned to like the new addition, despite the obvious God problematic. I have learnt that God is lazy and doesn't care, and also that when he cares, it only involves a specific individual or problem, not something big and mighty like you would expect from God...But that's a story for a different time.

Now, back to the angel theme. When watching Supernatural I was told that Angels have amazing, hideous and scary forms that only prophets can see, and that, before descending to earth, they take a human form (with their permission of course). Now here's the problem, why and how do they take their human forms back to heaven? How do they time travel with a human "meat bag"? HOW?! Please enlighten me, cause I have no idea. And at the end of season 8,when heaven shuts it's doors, you just see an awesome clip with a bunch of angels falling from the sky, their wings burning like they were paper.......Wait, WHAT?!

• Fact 1 - Wings burning?! What wings ?! Weren't normal humans blind to them? Or did just everyone turn into a prophet instantly?

• Fact 2 - They are falling...IN HUMAN FORMS?! What? Were they previously informed of what was about to happen, and took the time to go down on earth and convince a human to be their "suit" and then came back up, just to fall back down? And how are their human forms in heaven? Sam and Dean had to "die" to get up there, weren't souls the only ones allowed or did that rule change to?

• Fact 3 - You all remember that one episode in which we are told the story of Castiel's human body, right? Okay, now forget all about that guy, he is completely dead. There is just nothing left of him. When the angel is turned into a human (What? An angel turned into a human just like that? That sound completely logic), you would expect him to be bipolar...but no, his human body, the soul he completely ruined, just gave up, and decided to be there latent for the rest of his life, even when the only thing he has to fight of is an inexpedient fresh made mortal.

Now, that's just all I wanted to say. If you have an explanation for this please feel free to tell me in the comment section bellow.

I hope I didn't take much of your time, and thank you for taking the actual time to read this :) .

You are awesome