If you have read my earlier lucid dreaming post you will know I own a rare Novadreamer sleep mask which detects and acts on REM to induce lucid dreams, so you know I am a sucker for spiritual technology.
I also own the pictured mind machines, the Mindplace Procyon and Kasina, they will play binaural beats and isochronic pulses with synchronising colour changes in the goggles, in a sophisticated way to rapidly bring about meditative states, and in the case of the Kasina incorporate soundscapes, can be programmed by Neuroprogrammer 3 and react to your own music played through it.
This can be pleasurable, relaxing, bring about altered states of consciousness, all good and best of all, free once the unit is purchased, but can they aid lucid dreaming and astral projection?
Many companies already produce audio files to try to bring about the same, but what combination of alpha waves, theta and even spikes of beta and gamma will bring about the desired effect?
There are legends of magic frequencies, from the Schumann resonance, 6.3 Hz, 3.85 Hz, I would be interested to hear what success people have had, or failing that, if any eccentric billionaires would like to buy these off me. Worth a try.