From my favourite author, Douglas Adams:
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''Beeblebrox,'' he said, sticking his hands behind his head,  ''have
you any idea what's going to happen to you on the Frogstar?''
''They're going to feed me?'' hazarded Zaphod hopefully.
''They're going  to  feed  you,''  said  Roosta,  ''into  the  Total
Perspective Vortex!''
Zaphod had never heard of this. He believed that he had heard  of
all  the  fun  things in the Galaxy, so he assumed that the Total
Perspective Vortex was not fun. He asked what it was.
''Only,'' said Roosta, ''the most savage psychic torture a sentinent
being can undergo.''
Zaphod nodded a resigned nod.
''So,'' he said, ''no food, huh?''
''Listen!'' said Roosta urgently, ''you can kill a man, destroy  his
body, break his spirit, but only the Total Perspective Vortex can
annihilate a man's soul! The treatment  lasts  seconds,  but  the
effect lasts the rest of your life!''
''You ever had  a  Pan  Galactic  Gargle  Blaster?''  asked  Zaphod
sharply.
''This is worse.''
''Phreeow!'' admitted Zaphod, much impressed.
''Any idea why these guys might want to do this to me?'' he added a
moment later.
''They believe it will be the best way of destroying you for ever.
They know what you're after.''
''Could they drop me a note and let me know as well?''
''You know,'' said Roosta, ''you know, Beeblebrox. You want to  meet
the man who rules the Universe.''
''Can he cook?'' said Zaphod. On reflection he added:
''I doubt if he can. If he could cook  a  good  meal  he  wouldn't
worry about the rest of the Universe. I want to meet a cook.''
Roosta sighed heavily.
''What are you doing here anyway?'' demanded  Zaphod,  ''what's  all
this got to so with you?''
''I'm just one  of  those  who  planned  this  thing,  along  with
Zarniwoop,  along  with  Yooden  Vranx,  along  with  your  great
grandfather, along with you, Beeblebrox.''
''Me?''
''Yes, you. I was told you  had  changed,  I  didn't  realize  how
much.''
''But ...''
''I am here to do one job. I will do it before I leave you.''
''What job, man, what are you talking about?''
''I will do it before I leave you.''
Roosta lapsed into an impenetrable silence.
Zaphod was terribly glad.
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Exotic though this behaviour may seem, there is no life  form  in
the  Galaxy  which  is  not in some way guilty of the same thing,
which is why the Total Perspective Vortex is as  horrific  as  it
is.
For when you are put into the  Vortex  you  are  given  just  one
momentary   glimpse   of  the  entire  unimaginable  infinity  of
creation, and somewhere in it a tiny little marker, a microscopic
dot on a microscopic dot, which says ''You are here.''
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''It ... er ... it doesn't look like any kind of  Vortex  to  me,''
said Zaphod.
''It isn't,'' said Gargravarr, ''it's just the elevator. Enter.''
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The door of the Vortex swung open.
From his disembodied mind Gargravarr watched dejectedly.  He  had
rather  liked  Zaphod Beeblebrox in a strange sort of way. He was
clearly a man of many qualities, even if  they  were  mostly  bad
ones.
He waited for him to flop forwards out of the box,  as  they  all
did.
Instead, he stepped out.
''Hi!'' he said.
''Beeblebrox ...'' gasped Gargravarr's mind in amazement.
''Could I have a drink please?'' said Zaphod.
''You ... you ... have been in the Vortex?'' stammered Gargravarr.
''You saw me, kid.''
''And it was working?''
''Sure was.''
''And you saw the whole infinity of creation?''
''Sure. Really neat place, you know that?''
Gargravarr's mind was reeling in astonishment. Had his body  been
with  him  it  would have sat down heavily with its mouth hanging
open.
''And you saw yourself,'' said Gargravarr, ''in relation to it all?''
''Oh, yeah, yeah.''
''But ... what did you experience?''
Zaphod shrugged smugly.
''It just told me what I knew all the time. I'm a really  terrific
and great guy. Didn't I tell you, baby, I'm Zaphod Beeblebrox!''
His gaze passed over the machinery which powered the  vortex  and
suddenly stopped, startled.
He breathed heavily.
''Hey,'' he said, ''is that really a piece of fairy cake?''
He ripped the small piece of confectionery from the sensors  with
which it was surrounded.
''If I told you how much I needed this,'' he  said  ravenously,  ''I
wouldn't have time to eat it.''
He ate it.
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that's from his trilogy, er, his 5 books:
The Hitch Hiker's Guide to the Galaxy
The Restaurant at the End of the Universe
Life, the Universe, and Everything
So long, and thanks for all the fish
Mostly harmless
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He was good with this people:
http://www.youtube.com/watch?v=BdFOgLyk6Qs