Preparation of A. Muscaria:
1. Set your oven to the lowest setting possible. Cover a large oven tray with alfoil.
2. Separate caps from stems. Cut stems in half, vertically. Lay caps and stem cross sections out across tray.
3. Place in oven. Do not close oven door. Pay close attention as they cook. The caps will, most likely, leak fluid. The stems, most likely, will not. This fluid needs to be frequently reapplied to the caps. Use the caps and stems to mop up the liquid as if you are mopping up curry with a naan. Once you have mopped up the liquid, turn them over so the wet side is up.
4. They will leak again, and again. Repeat step 3 until they stop leaking.
5. Leave the to cook until they shrivel up and harden. When they are mostly dry, take them out of the oven and grind them in a blender or (preferably) coffee grinder. Place the powder into a pot full of boiling water. Simmer gently for 30-60 minutes.
6. Drink the soup. Some people say to do this slowly. Personally, I think it is best to do it quickly if you want to achieve the full effects. Keep in mind that it is extremely difficult to ingest, far more so than cough syrup or mescaline cactus juice.
Be warned: You must either consume it with a trip sitter (highly recommended) or (if that is absolutely impossible, and you insist upon tripping it anyway) create a safe environment. I am intending to do a solo Muscaria mission in the next month or so. I will be locking myself in a room with two buckets. One bucket for vomit, the other for piss. The purpose of locking myself in is so I don't wander out into the middle of the road. Muscaria takes you - mentally and spiritually - to another plane of existence, while leaving your body behind. Potentially, very dangerous.
As for what I gained from my encounters with said dimension: I was always a really anxious person. I never believed in anything. Muscaria changed this. I had a series of visionary experiences, all thematically related, that seemed to convey a message. The message is indescribable. My words will not do it justice. But I'll attempt, in order to give you an indication. The visions pertained to the cycle of life. I felt myself die and come back to life repeatedly. I saw myself die. At one point, I was stacked on a column of human bodies surrounded by millions of other columns of human bodies. They were not dead or alive. They had yet to come into existence. I, too, had yet to come into existence. When it was my turn, I felt myself being born - spiritually. I felt the breath of God, inflating me from flesh into life. My lips, my fingers, my hands. I changed from 2-Dimensional to 3-Dimensional. The hallucinations were not only visual (in the sense that I could vividly see the entire underworld in all it's splendour and detail) but also auditory and SENSORY. I was in that dimension in every way that we are in the world. It was more real than any dream, more vivid than any hallucination and more emotional affecting than any experience I have ever had. More, not by degrees; more, infinitely. After I came to life, I felt myself die; and, I understood that this was the nature of existence. I was at peace with my mortality and the recycling nature of the universe. Another vision involved me falling through a void, only to appear at the top of the void when I reached the bottom, and start falling again. The same feeling of "the cycle of life" and a snake biting it's own tail and the lack of fear of my impending death was ever-present. This falling vision is inherent to Muscaria. I have read countless accounts of the same vision. As far as "delerium" goes (I hate that word; it is man-made and inappropriate) at one point I came out of a vision, struggling to explain to my wife that I had discovered the meaning of life and the secret to time travel. The vision that pertained to time travel is hazy. It was beyond my conscious mind. I understood it in the other dimension, but could not possibly put it into words. I remember it involved, in some way shape or form, a door. I suspect that time travel is a misinterpretation of the fourth dimension as a linear plane of existence. That is, given the cylical and infinite nature of the universe, we are always travelling through time. We are both heading towards the past and the future, always. Because the snake bites it's own tail.
When the experience ended - it appeared to last forever, as if time had stopped completely - four to six hours was like a year - I had an immense sense of spirituality and oneness with the universe, which has not left me. This was many years ago. Maybe five years ago. I don't know, precisely. Since then, I have not felt the need to repeat the experiment until the past six or so months. It was so immensely satisfying and eye-opening that I don't need to do it day after day, year after year. Most drugs, by comparison, offer no such satisfaction. There is no lasting effect to psilocybin mushrooms. You take them, you feel something; then when you're sober that something goes away. Muscaria is not like that. It is truly mind expanding. It stays with you.
I had a dream last week, in which I found a field of Muscaria toadstools. Over the past six months I've been tempted to revisit that incredible dimension, but at the same time apprehensive. Unsure, if my desire to return there is a pure desire. Or, if I just want to be awe-struck. The dream was the precursor to my decision to revisit that incredible place. When I woke up, the decision had been made. There no longer was any apprehension. It is time, to go back. In many ways, now, I am much more atuned towards such an experience than I ever have been. I want to meet God for all the right reasons. Since that day, so many years ago, I have come a long way on my spiritual path.
"Delerius" and "warped reality" are not accurate descriptions of the muscaria experience. I have seen many people fail, because they are not ready and/or cannot consume the soup/stew. Even if you manage to succeed: it will, most likely, make you rather sick. Reality will not be warped. Reality will cease to exist. You will not be delerious. You will be divine.
I hope that satisfies your query.