https://www.mantakchia.com/enlightenment-dark-room-retreat-2007/
https://www.mantakchia.com/darkroom/in-the-dark-with-mantak-chia-darkrooms-i-ii/
Dark room kitabi:
DMT:
Spiritual Molecule belgeseli
https://www.vox.com/first-person/2018/2/19/16739386/ayahuasca-retreat-psychedelic-hallucination-meditation
https://www.newyorker.com/magazine/2016/09/12/the-ayahuasca-boom-in-the-u-s