Science Daily: "Brain Waves Pattern Themselves After Rhythms of Nature."
Math dude: Consciousness = chaos...hallucination is to "reality" as branch is to root.
yours truly has been fantasizing about this since I first got a personal computer, back in the day of the 286. Fractint became WinFract became Fractal eXtreme, and lo, still there was no virtual Dreammachine...until now. And it works...you do have to sit close to the monitor, and other details of set and setting doubtless apply (I first used it while blasting The Who By Numbers and sipping absinthe; think, rather, Out of Stillness, yogic breathing, and incense...).
One morning in my youth I was riding a train, had been up all night on ginkgo and gotu kola, reading Nicole Brossard (talk about set and setting!) and I closed my eyes in exhaustion just in time for the train to enter a forest and the sun to fragment itself into limitless flashing daggers speeding between the trees...the light-play resolved itself variously into sea-waves and peacock feathers--an entire visual field of Krishna's peacock feathers elaborating themselves into flames of thought footnoting Nicole's Lovhers... it was Her, calling...