I also received a dose when I broke and dislocated my ankle. The experience was incredible, quite enlightening, despite the fact that most of what I could see was my pain as a sore spot on a multicoloured "wall". To sum up the experience, I felt like "I" was a disassembled geometric form, and my external point of view looked at the form and coldly contemplated, mostly, the pain visible on the wall.
It left a profound effect on me. Gave me a perspective about myself that I can't forget.
If it was legal and there was a safe way to do this again, I'd like to see how it's like when you're not in atrocious pain.
I believe it was exposing you to the underlying geometric shapes (including more complex ones that form screens and mapping references) that exist or form relating to fundamental physics, which our brain's have evolved to not pay attention to or perceive - at least for most people because seeing visually that level of detail would take away from your vision or perception of the present surroundings which arguably is more important for survival; in essence the mind is paying attention to it, however it is overshadowed by the stimuli coming and being analyzed from the physical body - I think this is also why ketamine is finding psychiatric use, as it can clear or remove physical blocks to allow people to see and process underlying energy that they're otherwise blocked from feeling (enough) to process them.
I had a similar experience during the beginning of a ketamine IV infusion that I was doing to see if I could treat central sensitization that I have: as I was disconnecting from feeling my body, I could visualize feelings in my body - literally seeing certain shapes. At one point a fear came to mind and then I could feel and experienced that fear-memory in a perfect sphere traveling down my body until it reached my root (root chakra, groin area) and presumably disappeared or dissipated, as did the actual feeling of fear contained in the sphere along with the memory associated with it.
Ketamine IV infusions are legal and paid for in Canada for pain, and it's legal for psychiatric diagnosis if referred by your doctor - however not covered by our health system. Arguably the health system, practitioners, and regulators don't know enough and so need to move forward slowly until there's time for proper research and guidance.
'I could see was my pain as a sore spot on a multicoloured "wall".'
All other stimuli forming you dissipated, so then you were seeing a flat representation, or screen, a map of your body and then perceived the spot radiating pain as a multicoloured spot on the wall/screen? That's what I took from that description.
It left a profound effect on me. Gave me a perspective about myself that I can't forget.
If it was legal and there was a safe way to do this again, I'd like to see how it's like when you're not in atrocious pain.