The sounds from crystal bowls can b quite intense during meditation...Posted by Nanoo Nanoo (here)
Posted by merkabagirll (here)
Mickey Hart and Band uses sounds of the Cosmos in thier galactic Tribal Trip Trance! Saw them live recently ... absolutely Stellar! (Not sure hoe to embed ...)
https://youtube.com/watch?v=6_DW4t5zmIk
Yes sound waves are a natural way to " induce " these states. It requires effort in the beginning. This is why we have so few adepts. Not may people have the dicipline to practice these things daily for the achievement of spiritual progress hence the " pills " ..
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