Very Interesting. I have also experience this feeling of "Nostalgia" or I might describe it also as similar to "Deja Vu".
I experienced it the first time I smoked Salvia. Afterwards I could remember very little of my trip, including the Nostalgic Deja Vu feeling.
However months later during an extreme overdose on JWH 018, it brought me back to this same exact place in my mind at one point and I immediately remembered the details and feelings of the "Nostalgia/Deja Vu" place of my Salvia trip.
After I came down from this overdose, I did remember that I had just been taken back to this Nostalgic place in my mind and that it was the same as Salvia but I cannot remember much besides the fact that it happened.
Thinking back and trying to express it in words does however bring some memory of that "feeling" back though. Its impossible to put into words but the feeling is so real its almost tangible.
I somewhat remember it almost feeling like it took my mind back to its state when I was just an infant and had such a small awareness of everything about myself and the world around me. Its like I was a baby again for a few moments and trying to take everything in all at once.
Part of me believes this is why it feels like Nostalgia- because we now feel so disconnected to the inner-infant that is in us and that we used to be. For me, it felt alot like Deja Vu because I was just like dang.... this seems soooo familiar and just as I was piecing it together I got snapped to somewhere else.
I'm very curious if anybody can relate to this at all from a Salvia experience or any other drug experience. I think I have experienced this multiple times but have absolutely zero recollection afterwards each time. This is because I do remember one time thinking "MAN! I have been here before and several times and I always lose memory of it afterwards, sure hope it doesn't happen again".
And thats about all I can remember- just the thought of it.
Concur 1000%! The sensation of "Deja-Vu" is really strong and deep for me... the details of the individual experiences hardly seem coherent enough to matter, except for one, when I smoked it while on LSD... experience was VERY coherent and still "worries" me to this day:
http://www.bluelight.ru/vb/showpost.php?p=8879080&postcount=5
Am I REALLY that Indian boy trapped in a vision-quest-dream of THIS reality??? Hmmmm.... still I do wonder... that experience was SO clear and bright and real and consistent, I have alot of trouble dismissing it as a fantasy or wish... yet here I am stuck permanently in in 20th century USA it would seem!
But even the "balloon careening around the room" type of random salvia smoke experiences have a STRONG feeling of: I've BEEN HERE BEFORE, FOREVER!!! My 'human' life is just something that this fleet butterfly-like 10-dimensional salvia-being who I REALLY am flits into for a lark or maybe to learn... seems like a full life as a human but once my mind "pops out" of the human mind and back to salvia-dimension, time is at like a 90 degree angle to our time sense here, and has no meaning... an entire human life only lasted a blink from that perspective... this sense that OH YEA, *THIS* IS WHAT I REALLY AM... WHAT A RELIEF!!! NOTHING TO WORRY ABOUT AND TAKE SO DAMN SERIOUSLY... ALL THE PAIN AND SUFFERING WAS JUST A DREAM OF SOME KIND, HAHA, HEHE, AWAY WE GO, WHEEEE! OFF TO SOME OTHER MENTAL ADVENTURE, PERHAPS AN ALIEN OR A TREE OR A STAR THIS TIME, YAHOO!
I am not kidding, that's what it has seemed like to me more than a few times. WTF is all that??? What does it mean? Is it some other way of perceiving my consciousness in the universe, equally valid as this human "I" ego glued and trapped inside this skull? Seems that way while the salvia lasts, but then I end up back here again, and this seems more real, except for that lingering feeling of strong Deja Vu I had while "over there".
NOTE: I also agree with later posts that sublingual is the way to go... the original way the shamen did it... some extracts don't work though... the one called "Emerald Essence" from Siebert, the original researcher of the stuff, really did do it VERY effectively however... cheaper ones did not. SAME Deja Vu effect, only the whole thing evolves more slowly and lasts ALOT longer and you can actally bring more back, but it still seemed quite dreamy, but also REAL, as if I was WAKING UP from THIS world which is the dream, back to my TRUE NATURE in a way that is hard to describe. Also, I always got a sense of Pine Trees (from the taste/smell of the salvia) and oddly, but very beautifully, strong strong feeling of seeing a very clear very deep Cobalt Blue light everywhere, behind and i inside of everything. Anyone ever get that on salvia, especially sublingual?
Oh yea... I always found that to get my mind to separate from my body and allow the trance to properly form, I need STILL and QUIET. Movement, touch, noise all seem to prevent the separation, and pull me back into my regular human place. So try to sit/lay as motionless as you can for the best chance to get it to work... even jostling or giggling by friends it the room can mess it up, at least for me.