Question from Carry-On-Castiel: Cas, what was it like to be an angel then transform into a human?
At first it was quite difficult, I had to learn what to say and what not to say, what to eat and what not to eat, what you should do this and not that, etc.
The worst part of all was when I ate a delicious food then later having to, what Dean says, "to let the Kit-Kats swim".
Kit-Kats are also very delicious.