Impossible to describe. That isn't just some platitude. It truly is impossible to describe. It would be like trying to explain what color is like to someone who's never had sight.

I can try, but it'll only give you a vague sense of what happens.

You eat the mushrooms. Ten minutes pass. You're a little anxious. "What if I took too many? What if I didn't take enough? What if they don't do anything to me?" - You remain lying down, passing time by reading or looking at your phone. The dullness of daily life still going on around you.

Twenty minutes pass. You suddenly feel just a little bit more... elated. But you can't tell if you actually feel more elated, or if you're just experiencing some sort of placebo effect based on expectation.

Thirty minutes pass. It's starting. There's no placebo going on here. Jolts of physical pleasure are running through your body, from your toes into your head. You feel almost paralyzed from the pleasure. You stop whatever you were doing before, and lay all the way down. The pattern of your thoughts change, and they change in a way that you didn't know was possible before. They feel as if they almost have a physical dimension to them. They're starting to seem as if they're become conjoined with light and sound. You're confused. You shut your eyes really tight to try to snap back to a sense of normalcy. But when you shut your eyes, you see it. You see infinity. You didn't know it was possible to see infinity. You can't put it into words. There is a geometric pattern of light spiraling inwards. The hair on your neck stands up. Every second you go deeper. The spiral is coalescing into a vast array of fractals. Each one opening up another. No matter how vast the pattern, you maintain the sense that you're seeing the entire thing at once. An infinite space experienced at one time. It's not just a visual experience, but an emotional one as well. Every part of your thoughts and your feelings is in conjunction.

An hour passes. You almost can't handle it. You open your eyes. The world is more vivid than before. Colors are more vibrant. Sound and sight are one, and sounds have colors. There is a humming, rhythmic wave happening right above your eyes. You suddenly know what people mean when they say "awakening your third eye". Everything is connected. There is no separation between you and what you're seeing. The observer is the observed. Everything has a pattern, and everything is a part of the pattern of everything else. You realize that this is how things always really are, but the trappings of your human brain have been hiding it from you. But it's always knowable if the veil is pulled off.

You have pulled off the veil.

Two-Six more hours pass. This continues in waves of strength. Feelings come and go. At various points you feel like you've seen God. You cry but you aren't sad. You're the most fulfilled emotionally and spiritually you've ever been. You want to hold on to this feeling forever. After the sixth hour, it slowly starts slipping away. You feel yourself returning to normal. You lay on the grass, clutching the ground. Whispering, "Oh my God. Oh my God. Oh my God." You decide to listen to music. It sounds like you've never heard it before. A four minute song feels like it lasts for a lifetime.

Seven Hours pass. A sense of normalcy returns. But you feel changed. You walk around your neighborhood wondering how you can ever go back to how things used to be. You don't watch television or browse the internet for the rest of the day like usual. You remain outside. You think. You feel. You watch the sun setting. You feel the "afterglow". A sense of peace. Like everything's going to be okay. Like you are going to make it. Like everyone is going to make it.