The worst "loop" I have experienced was on 8g of mushrooms.
It hit me so quick I didn't know how I got there, why I got there, when, etc, etc,
I kept seeing, was stuck, in the same 3 scenes for what seemed like an eternity.
In the midst of a total mind fuck, I didn't even feel human anymore, just some kind of screwed up hellish purgatory, First I would see the top corner of the room I was in, then I saw the door, Then I would look at my zipper, and I would forget everything, and the loop would continue, starting at the corner of the room again.
This was a extremely unpleasant experience, and according to my friends, at this point I was seen stumbling around in the snow screaming nonsense and injuring myself.
I did not know what to make of this experience, and I had fairly unpleasant "Loop" flashbacks just from smoking weed.
A few months later, I drank 4g of mushroom tea.
A few hours in, it hit me again, the very same loop was back.
This time I was more experienced, I knew not to fight it, and I managed to actually use the momentum from the loop, per say, and propel myself into the ultimate blissful state of mushroom hyperspace.
That was definitely one of my most enjoyable mushroom experiences.
Now almost every time I am visited by loop, especially on tryptamines, it never lasts, I am able to realize it, and it only helps me on my journey.
Now this doesn't work all the time, I recently had a very miserable experience involving some kind of alien loop flashback. **COUGH COUGH* 2c e **COUGH COUGH**
Expect nothing, Receive everything.
"Experiment and extrapolation is the only means the organic chemists (humans) currrently have - in contrast to "God" (and possibly R. B. Woodward). "
He alone sees truly who sees the Absolute the same in every creature...seeing the same Absolute everywhere, he does not harm himself or others. - The Bhagavad Gita
"The most beautiful thing we can experience, is the mysterious. The source of all true art and science."