Castiel's eyes widen as he takes the joint, face heating at the brief flash of bare skin. He feels suddenly very exposed at the surfeit of flesh and tries to light the cigarette. He gives up after a moment, waving his hand to create a flame and takes a long breath in, casting wide eyes at Dean to ensure he's not doing anything incorrectly.

He holds it in, realizing after a few very long moments that a human's lungs would require exhalation and he's likely left it in to long. The ground seems to suddenly shift as he lets out a surprised, smoky breath, hand clapping to the soft grass to steady himself. Flowers start popping up around them where his Grace bleeds a little into the dirt and he wonders idly if it will all slip right out of him if he doesn't pay attention.

It seems unlikely.

"You are all glowing with the strength of your souls," he informs the group, knowing how immediately important it is that they are all aware.