This is a fascinating paper that suggests weak magnetic fields induce mystical experience remarkably similar to those induced by DMT.
Hill, D., & Persinger, M. (2003). Application of transcerebral, weak (1 microT) complex magnetic fields and mystical experiences: are they generated by field-induced dimethyltryptamine release from the pineal organ?. Perceptual And Motor Skills, 97(3 Pt 2), 1049-1050.
Hill, D., & Persinger, M. (2003). Application of transcerebral, weak (1 microT) complex magnetic fields and mystical experiences: are they generated by field-induced dimethyltryptamine release from the pineal organ?. Perceptual And Motor Skills, 97(3 Pt 2), 1049-1050.