Offscreen Afterlife

A show that wants to portray the existence of an afterlife, but wants to avoid something as banal as Fluffy Cloud Heaven will often describe the afterlife in purposefully vague terms.

The theory goes that Heaven is more wondrous and Hell more terrible than anything we can imagine, so we are given only the reactions of those who come back and either long to return or will do anything to stay out. A possible implementation of The Un Reveal.

Anime and Manga

 * Cheza and the wolves in Wolf's Rain are searching for the entrance to Paradise (Rakuen) on Earth, but none of them knows what it's really like.
 * In Naruto this is called "The Pure World" (life is "The Impure World"), and is brought up mostly in reference to Edo Tensei, the jutsu whereby a dead ninja is brought back to life to serve as an enslaved, zombified summon. The last thing any of the ninja remember is the moment of their death, which seems to be part of the "pure" thing. The Pure World may or may not refer to both Heaven and Hell since Zabuza fully expected to arrive in the latter, though in his case thats probably because of Death Equals Redemption.
 * This could also imply that there is but one afterlife in the Narutoverse, much like Hades or an eternal purgatory.

Comic Books

 * This is both employed and subverted in Neil Gaiman's Sandman. Death is constantly meeting people to take them to the afterlife, but we never get to see what the afterlife she brings them to is like. However, we do see the fate of a great many souls after death, including quite a lot of time spent in Hell, and a memorable visit to the Greco-Roman underworld.
 * Apparently, this happened to Jean-Paul Valley after he met his end in the final issue of his comic. His last comment before disapearing from the pages of DC Comics forever were "It looks just like the earth." And he was smiling.

Film
"Azrael places his hands over Bethany's eyes. For about 10 seconds, we see some of the most fucked up and disturbing imagery that can be crammed into 240 frames of film."
 * In the film Dogma, the demon Azrael is willing to have the entirety of existence erased in order to avoid having to return to Hell.
 * The DVD has since revealed that Azrael was originally given a much more detailed rant about Hell, and would have proceeded to give Bethany (and the audience) a glimpse of it. However, the sequence was not quite completed, and instead, the following message appears:

"McCoy: "You mean I have to die to discuss your insights on death!?""
 * Used, and Lampshaded, in Star Trek IV the Voyage Home, when the recently resurrected Spock tells McCoy that he can't describe death, since McCoy lacks a common frame of reference:


 * This is doesn't really make much sense though, considering that McCoy did die in Shore Leave, an episode of the Original Series.

Literature

 * Discworld does this a bit (except in cases of definite reincarnation), though it shows varying amounts of the journey. In Mort, for instance, Death and Mort send off an assassinated king, who slowly vanishes from view while they're still in his castle. "What happened to him?" asks Mort. Death replies, In later books, such as Small Gods and A Hat Full of Sky, we're treated to descriptions a vast, silvery desert, which the deceased must cross before reaching their final destination.
 * There is no consistent afterlife in Discworld, as it's explicitly stated that each person's afterlife experience is based on their personal beliefs.
 * In Stephen King's The Dead Zone, when the protagonist falls into a coma, he ends up in a limbo, which is like a corridor with dark chromed steel walls. He eventually comes out of the corridor and returns to life. At the end, when he dies, he returns to the corridor, not knowing if there's something at the end of it.
 * The Quantum Gravity series brings the viewpoint character of the time right up to the edge of what some cultures would call the River Styx, and some beings about to cross describe what they feel is going to happen, but the reader has yet to go that far. They say

Radio

 * Adventures in Odyssey: In "The Mortal Coil," Whit designs an Imagination Station program that is supposed to be a virtual reality experience of death. It accidentally sends Whit into a coma where he really ends up on the edge, and we are treated to his experience of Heaven, albeit not nearly as wonderful as the real thing, or so he is told by his dead wife and son. But all we get is a secondhand account of Eugene's virtual experience of Hell: "I've never felt such loneliness or isolation. It was as though I was completely separated from everyone and everything -- completely and thoroughly alone. Non-existent in a dark void of solitude. I was alone, Connie. Utterly alone in a burning blackness, and I've had nothing but nightmares since then..." Whit shelves the program permanently after all this.

Real Life

 * It's not uncommon for people who have had an out-of-body experience to believe they ventured to Heaven, Hell, or some other version of the afterlife. Obviously, they were the only people who witnessed their experiences. Whether or not any or all of these accounts are true is up to the individual.

Television

 * In Buffy the Vampire Slayer, Buffy falls into deep despair at being ripped out of Heaven. Angel's time in Hell is so horrific he is driven feral and insane by the time he returns.
 * Over on Angel, Spike's terrified descriptions of slipping into Hell are played utterly seriously.
 * There are plenty of hells and one heaven shown on-screen, though.
 * Supernatural's demons are always waxing poetic about it. "It's a prison... made of pain, and bone, and flesh..." and so on.
 * According to Ruby, it's like Hellraiser, but with less leather.
 * We have caught two glimpses of hell thus far, in the season finales for seasons two and three. The first time it's shown to be a typical fiery cavern. The next time it's a dark green void with thunder and hundreds of chains and hooks.
 * As of season 5, we've had a look at heaven as well: apparently heaven is different things for each person, overlapping but separate, apart from the Garden at the centre, which everyone perceives differently. It gets explicitly described as "Disneyland, without the anti-semitism" (and, thankfully, from what we've seen, without the sugary death)
 * Oh, and that time the Pink Galaxy Ranger died. She showed up again translucent blabbing about being in "a beautiful place", so move on and find the next Pink Ranger. And then she comes back to life with no explanation in the finale when they find the new colony planet.
 * Which is in stark contrast to Mike's earier death, (yes, he did indeed die) where he can't remember anything, although that may be a side-effect of being possessed by the Magna Defender (yup, in this show the Sixth Ranger actually stole another person's body)
 * Though not quite death, the realm of the ascended in the Stargate Verse is never shown, except for the time it was represented as a restaurant for Daniel's mind to comprehend. No details of what it's like are ever given. Also, even though at least three members of SG-1 have all died and come back (and more than once), they are never asked what it felt like before the resurrection -- the one thing that's not even lampshaded, unlike nearly everything else in the show.
 * In the Outer Limits episode "White Light Fever", an old man has been doing everything he can to stave off death, including putting himself ahead of a sweet young woman to have a heart transplant. He remarks during the episode that "death is cold". As he is finally dying, he sees the ghost of the sweet young woman approach him. "Take me with you," he pleads. She tells him this is not possible, and that where she is going, it is always warm. Just before she leaves, she turns to face him, saying, "It's funny. I always thought it was the other way 'round."
 * In Dead Like Me, the viewers never get to see what happens to people's souls after they cross over, and it's never really given much detail. They usually just have some kind of happy vision and then vanish. You only see the souls that stick around, either as Reapers or.
 * In Lost,

Toys

 * Taken to the extreme in Bionicle, where afterlife is sort of implied to exist (Mata Nui's soul, for example, started drifting off into it before he recovered), but what it is like is never given any details. The writers have their reasons for this: not wanting to touch on iffy subjects, they purposely avoid talking about it.

Web Original

 * In Vision of Escaflowne Abridged, the deceased Varie describes heaven as what it would be like "if the best orgasm you ever had could last forever." Main character Hitomi finds this description less than helpful.