"I looked into the eye of this island, and what I saw … was beautiful."

Those are the immortal words of Lost's John Locke, but Agent Phil Coulson will make a similar remark on the next episode of Marvel's Agents of S.H.I.E.L.D., airing Tuesday. Marvel released a sneak-peek clip from the upcoming episode, titled "FZZT," featuring Coulson recounting his near-death experience for a man who also seems to be near the end of his life.

"Listen to me. I've been where you are right now, so please believe me when I tell you, you don't have to be afraid," Coulson tells the man, played by 24 and Person of Interest veteran Vincent Laresca. "I got hurt once. Pretty bad. I died. Some say it was only for eight seconds, but I know it was more than that. I know I wasn't here anymore. I was there."

"What's it like?" the man asks, prompting Coulson's Lockeian response: "It's beautiful."

The nature of Coulson's resurrection remains a key mystery on Agents of S.H.I.E.L.D., one the writers are taking their precious time to reveal. Perhaps new clues will emerge in "FZZT," if not a full answer. Look for even more teases about Coulson's time in the afterlife in the Nov. 19 episode, called "The Well," which ties into the plot of Thor: The Dark World. Here's the synopsis of that episode:

"In the aftermath of the events chronicled in the feature film Marvel's 'Thor: The Dark World,' Coulson and the Agents of S.H.I.E.L.D. pick up the pieces -- one of which threatens to destroy a member of the team."