A psychonaut is Greek for- psyche = soul or spirit - nautes' = sailor or navigator.

So initially you have become a soul sailor/spirit navigator. Seeking altered states of consciousness via meditation, yoga, sensory deprivation, flotation tanks, holotropic breathing, entheogens, entagtogens, plant medicine, psychedelics.

We are exploring our own minds, we are exploring our own soul, we explore our consciousness. We are exploring the universe. The universe is exploring itself through our eyes.

Technically everyone is seeking altered states of reality, going to view a movie.. is for the emotions it gives us. Watching UFC or sports, the primal tribal side of our DNA. Drinking coffee or tea. Listening to music, playing video games, stepping into VR. Being an actor on television. Sipping a beer/wine. Having sex. Dreaming. These are all altered states of consciousness.

I believe before any one does a true psychedelic, they must study philosophy, yoga, meditation, holotropic breathing. You would never have "the fear," anxiety attack, panic attack, PTSD, or chronic depression. It is all being disconnected from the earth, spirit, soul, nature, the universe. The amazonians, the native American Indians, shamans... they know this. We have lost touch with our spirit. That is why we seek these altered states.
A psychonaut is Greek for- psyche = soul or spirit - nautes' = sailor or navigator.

So initially you have become a soul sailor/spirit navigator. Seeking altered states of consciousness.

We are all made of star dust, ruins of the big bang i.e. a super nova, in an ever expanding universe of collective consciousness. - Carl Sagan

You are the universe experiencing itself, if only for a little while. ~ Alan Watts
by ~=Phantom-Shaman=~ November 9, 2018
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The best game ever made, unfortunately becuase it isn't Halo 3 or another Call of Duty it did not sell very well because gamers these days hate originality.
"You should buy Psychonauts, its the best game ever made and its really original!"

"Yeah but then I won't have enough money to buy some generic world war 2 game"
by Dinnerordie July 4, 2009
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1. Noun: The best game of 2005 where you play as Razputin (But everyone calls him....Raz.) who is a young boy who ran away from his home in the circus to Whisper Rock Psychic Summer Camp. Raz has to use only his mental powers to find out and stop a horible plot that involves stealing brains and using them in a death tank to SHOOT DOWN INNOCENT CIVILIANS.

2. Noun: A person who is one of the Elite Force of the Psychonauts.
1. "Dude, have you played Psychonauts yet? It's like...The best platformer EVER."
"What sytem is it on?"
"PS2 and X-box."
"Sweet."

2. "Sasha Nein is one of the three Psychonaut agents that teach in Whispering Rock."
by Tsukijuun August 6, 2005
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Someone who has been through a profound psychadelic experience and while being in a normal state can remember and reflect on that experience and know that for just a few hours they really had it all figured out. 

A person who seeks a deeper understanding of what "IS" through psychadelic experiences.
by Arrr Teee February 11, 2012
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A true Psychonaut is that who seeks the truth through meditation, psychedelics, yoga. He who seeks the truth does not care if it's pleasant or unpleasant, all they want is the absoloute truth.
- Ay dawg how u so open?
- Bitch im a psychonaut. Were all one, idgaf
by Psychonaut326823 January 5, 2022
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The field of study which relates to spending time exploring the universe right inside one's own head. Usually with drugs/yoga/meditation. These people are on a quest to discover the self, and usually can be considered "realists".
Psychonautics (from the Ancient Greek ψυχή psychē 'soul, spirit, mind' and ναύτης naútēs 'sailor, navigator')1 refers both to a methodology for describing and explaining the subjective effects of altered states of consciousness, including those induced by meditation or mind-altering substances, and to a research cabal in which the researcher voluntarily immerses themselves into an altered mental state in order to explore the accompanying experiences.
by Diaphenous August 31, 2022
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A fictional form of secrete agent, localized to the field of paranormal investigation and the exploration of humanity's psychic ability's. Their single appearance in fiction, can be seen in Tim Schafers: Psychonauts
Psychonaut, Sasha Nine, Mia Vodelo, Razputin Aquato,
by Boyd Cooper February 6, 2012
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