Human
Castiel makes an odd attempt to straighten his tie and gives up before talking.
"My essence is as big as the Chrysler building,"
Castiel makes pointed eye contact with The Doctor.
"Oh ho ho I bet it is, that's why you need a human vessel eh,"
"I must take physical form on earth that is why I require a vessel,"
"Well I'm telepathic, I can read minds," There! Beat that angel.
"I can touch souls,"
"Oh now, can't we all!'
"No I can really touch souls, I have grace," The angel seemed assured of his grace.
"Oh bah, what is a soul anyhow?"
They digress again into debating over what a soul is. The doctor says it's all just neuron impulses and synaptic firings and something other but Castiel insists, it's more than that,
"Take Sam for instance, he lived for a year with out his soul,"
"Yes, yes it's like you said, a soul is more than what can be defined, I agree, I would know – always bumping into humans every corner I go,"
Castiel nods, "Humans are a stubborn race."
The doctor rubs his neck,"Yeh they are, impossibly, never do what they're told, free will an all,"
The two share a moment of agreement, and then The Doctor opens his mouth again - to argue some more.
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