I saw this mind-bending animation on r/imaginarylandscapes & thought it was pretty crazy.
It was made using Deep Dream neural network software "that uses a convolutional neural network to find and enhance patterns in images via algorithmic pareidolia, thus creating a dream-like psychedelic appearance in the deliberately over-processed images."
I've used similar software to create some images that I've posted here.
The Monkey Buddha Archives:
Deep Dream Images
The process for creating this imagery is definitely analogous to the bizarre visual experiences present in altered states and dreams. The brain is a pattern-recognition machine, and this software uses computers to simulate the unfiltered feedback loops that result in these kinds of hallucinations in the mind's eye.