Before the report, a couple of things worth mentioning: I am NOT using the term "ego death" lightly. I am 40+ years old, with 20+ years of active psychedelic experience. I am a medical doctor (cardiologist); this fact is partly relevant to this report.
I regularly consume psychedelics, predominantly DMT, LSD and psilocybin (in that order). My trips nowadays are always in the comfort of my own home, with my wife usually as sitter (and my kids tucked in bed). In this instance, my wife was not present; I was alone.
Whilst I used psychedelics as a means of escapism for years, my intentions nowadays are more focused on self-improvement and exploration of consciousness. I took a strong dose of LSD and at the peak, I vaporized DMT.
What followed was the most complete dissolution of self I have ever experienced. There was no "I" observing the experience — the observer itself dissolved. There was no time, no space, no body, no memory of ever having been human. Just an infinite, timeless awareness that contained everything and nothing simultaneously.
As a physician, I can tell you that this experience does not map onto any neurological model I was taught. Coming back was like being born again — I had to relearn who I was, where I was, what a body is. The integration took weeks. I wept for days afterward, not from sadness, but from the sheer weight of what I had witnessed.