You won't be dreaming on Friday night, Supernatural fans: Castiel is about to awaken!

On the episode titled "Reading is Fundamental," Rachel Miner reprises the role of Meg and alerts the brothers that their pal is up and about. Is he the same old Castiel? Watch this clip of his first encounter with the siblings and see for yourself:

Elsewhere, a bolt of lightening strikes a teenager named Kevin, turning him into a reluctant prophet. Does he now possess the key to defeating the Leviathan? Sam and Dean believe so. But they must deal with a pair of Archangels who want the kid for themselves first.

Check out the official trailer for this Supernatural episode now, and then click through the following photos for your first look at Castiel and company in action:

NOTE: What will go down on the Supernatural season 7 finale? Find out now!

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.