INTRODUCTION
I'm happy that this topic is mentioned here, because i really think nitrous oxide can elevate you during psychedelic experiences in whole new levels of consciousness.
So how does this notion come to me?
A friend and I were discovering 1P-LSD and 1CP-LSD to have some fun and later develop greater consciousness and a sense for non-dual experiences. Simultaneously we discovered that you could have a short interesting experience through inhaling nitrous oxide with the help of a balloon and a capsule crusher. The feeling itself isn't that spectacular. I would describe it like a massive "nicotine-flash", for someone, who doesn't usually smoke. It only lasts for about 15-30 seconds and will vanish shortly afterwards.
So it happened to be that during a lovely little trip with about 150 micrograms of 1P-LSD my friend pulled out some NO2 capsules and suggested we should try how this narcotic and "dull" feeling would play out during the trip.
What now happened can't really be described with words, and I'm sure I can only remember about 5% of the experience, because the mind could not comprehend this experience in any way. But I try my best.
NO2 + LSD EXPERIENCE
So after about 8-12 deep breaths out of the balloon, reality shattered away. Plants and stones began to look like beautiful fractals, which eventually formed one big fractal, which looked and felt like a "swirl". This tremendous "swirl", which could be felt in the body sucked me into it faster and faster. Simultaneously I began to feel and see every "lucky and joyful" moment of my life again, like in a flip-book, where every page was another "joyful" thing, which happened to me. Even stuff out of my early childhood came up, like when I discovered fascinating things in video games for the first time, or when I had massive joy when playing something. The images were clear and colorful, not comparable with normal remembering of such events.
I also sensed that "sober reality" was just a "curtain", which began to fall apart and got cracks, as soon as the NO2 got to its peak. Behind this "curtain" I could feel a mighty, menacing entitie "laughing" at me about my attempt to comprehend it. I felt small and tiny meeting this higher entity. (Maybe this was like a small DMT experience? I don't know I never tried DMT...)
Then the "curtain" closed again, and "sober reality" was established quickly after. My friend and I were just speechless and couldn't do anything than just laugh about how extremely different NO2 felt during tripping compared to just taking it when sober. It's like day and night.
And remember this was just on about 150 micrograms. So I really think there is a large potential to NO2 to get some deep insights to your past or unconscious when tripping on a solid dose of mushrooms or LSD.
WARNING
Before you crush one capsule after another, be informed that this narcotic gas , will damage your brain if you use it regularly and too intentisive at a time. The NO2 replaces oyxgen in your blood with itself. Therefor your cells, especially your brain cells, can be damaged if you lose your conscious for too long. Just take it scarsly and dont overdo it.