KNSFW Describe a time when you blew someone's mind.

As said.

I was party-hopping in my less upstanding college days. I spotted this kid that was obviously in a drug-induced wonderland. His friend told me it was his first time tripping, and asked me to “mess with him”. I walked up, as a stranger, with long hair, dark clothes, and a serious look on my face. I took him to the side by his shoulder and told him, in a dramatic tone:

“You are in a pitch-black, massive cavern, sitting on a stone just above the surface of a lake. There is water trickling down from the walls in the distance…
The trickling quickens, you feel water droplets hitting your face, you hear water crashing faster, more and and more powerfully all around you, your stomach turns as you are about to be swept under by a massive tide, then… Nothing….”

The look on his face was priceless.. After realizing he was at a party, surrounded by people, with music playing again, he burst out laughing,“Dude, I don’t know who the fuck you are, but you just blew my mind!”. I heard later that he wasn’t sure if I was even real.

For bonus points, give your take on what is actually happening when someone’s mind is “blown”.

P.S. Lets not make this about right or wrong, what’s done is done.