The first time I ate an 8th of shrooms I was tripping pretty hard but in complete control of myself. Several months later I got some shrooms for a different source, got high and lost myself. Initially I felt like I was just tripping really hard but was aware of myself. I gave up on the video game me and friends were playing because things just weren't as they were. Then, as I recall the secrets of the world were revealed to everybody, we were all the same person. I thought I died, something told me so, I seemed out of my body and time as I knew it froze. It seemed to me that I had reached some higher level of understanding or enlightenment and was allowed to do whatever I pleased.
Early the next morning I woke up and it seemed like everything was a dream, until I remembered the mushrooms. According to my friends I was incoherent, screaming and repeating everything I was told whilst running up and down the streets.
This is why it is best to start with a low dose.