Chris Bache wrote a book collecting 73 high-dose LSD experiences. These evolved as a "path" to dissolution and rebirth. 

His high doses were 600-800 microgram.  The microdosing dose: 10-15.  A high dose: 200.   

Chris Bache is - of course - a friend of the LSD researcher Stan Grof. Stan is now over 90 years old.  He once told me that he used doses of 1200 microgram. 

His book is not easy to read. This is an extract of an early session - it gets much more intense later.  I felt reminded of the book through Israel´s relentless genocidal wounding and killing  of Children in Gaza - more than 50.000 by now (Perplexity).

I saw it first in the distance, coming toward me like a storm sweeping off the ocean. Then it rushed over me, catching me in its fury. The killing of the children. Infants and children were being killed, mauled, and destroyed. Their little bodies were being torn to pieces by warriors and flung on piles beside the road. It was a horror beyond words.

I was an old Oriental woman screaming at the soldiers, beating on their chests, trying to make them stop. “Butchers!” I screamed. “Stop! Stop!” But they just flicked me aside without breaking stride and kept going about their work, hacking the children to pieces, smashing their heads against stones, tearing them apart with their bare hands. Thousands of little lives lost every minute.

My agony was beyond imagining. Now I was not one woman but thousands. My anguish at that moment was the anguish of all the mothers who had ever thrust themselves between their children and the life-destroyers, the war-makers, the bomb-droppers, the poverty-creators. I was powerless to stop them. I screamed and beat the ground with my fists, weeping for my children. There was nothing I could do. Nothing any of us could do.

Then in the dizzying swirl of anguish, a question sounded. “Are you dead yet?” I was so caught up trying to stop the killing that at first I didn’t hear the question. Then it repeated itself. “Are you dead yet?”

“Dead?!” I screamed. “Save the children, please! Yes, I’m dead! But for God’s sake, save the children!”

I was frantically pleading, begging. In the confusion of so many deaths, where was my death? I could not find it and became confused. There was terrible pain, my wish to save the children, and my death, but I could not sort them out. All I knew was that I wanted above all else to save the children, that my pain for them was enormous, and that I cared nothing about surviving myself.