I was immediately shot out like a cannon from my body into a place I can't even describe in words. It was pure unimaginable beauty and I was racing through it at incredible speeds, millions of entities would pass by as I zipped through the universe. I was stripped of all my humanity and eventually I was just a spirit or observer who had no memory of this world.
Eventually it all slowed down and I was in like a castle or a cathedral and there was this wise ancient man who reminded me a lot of Gandalf. He yelled at me with some weird language that I somehow understood: "Who are you?" I told him I didn't know. He seemed satisfied with that answer.
The experience felt like it lasted hours but was probably about 10 minutes in real time. Coming back was gentle — the cathedral faded and my living room slowly reassembled around me. I sat there for a long time afterward, just processing. The overwhelming feeling was gratitude and a deep sense that consciousness is far stranger and more vast than our daily experience suggests.