Yes. Hallucinogen ingestion, and withdrawal sicknesses ( Delirium Tremens aka DTs) both provided a spiritual experience, but neither were (according to Dr. Jung, vital) sufficient to affect a permanent change in my character.

I was deprived of water for 4 days and that does the job

That phenomenon can be understood through understanding quantum physics. Essentially, the universe breaks down to Energy. That energy is either potential or kinetic and can affect the world around us. I routinely find dimes all over the place, always unexplained. Its simply coincidence, but break down that word - co incidence; two things that go together. I would suggest reading Alice in Quantumland; its an easy read and explained alot for me

As a child I saw the reflection of my dog in the bathroom mirror for a second but he had died several months before. Although I was religious at the time I never did think it was a ghost but, that memory has stayed with me ever since.

As a teenager I was talking to somebody and, again just for a few seconds, I could see myself as if from an outside point of view. I haven't hallucinated in any obvious ways since then, not when sober at least!

Have dreams like that.

Pneumonia and a fever of 104 did it for me.

Yes, I do every night when I sleep.

Just once, when I passed out. I went to a beautiful land where everything was perfect and full of joy. I was so happy.

Then I woke up in the bathtub with my then-bf shaking me. I didn't recognize him at first. And what I mean is, not just his face--i didn't recognize his human form. Didn't know what he was. Didn't know where I was, why I wasn't in the beautiful place anymore.

I was super pissed for a few seconds. Then I remembered human life and everything made sense again.

Weirdest thing.

I hallucinated after brain surgery in 2000. Thankfully it did not last long. It was super scary. Thankfully also I had the presence of mind to know what was happening.

I can't say it wasn't induced by chemicals because it was brought on by having driven almost 72 hours straight with only stops of necessity during the trip. Near the end of this trip I began seeing things either in the road or crossing it and there were a couple of occasions where I was so convinced something was there I slammed on the brakes or swerved to miss them. Also, when I finally stopped, the roadway appeared to be traveling away from me or I was rolling backwards. All very real in my mind.