Chants, Rants and Trance

There's no doubt that concentrating on rhythmically repetitive sounds and motion from a group in unison can induce a trance like state, often quickly and to nearly everyone. But are these extra sensory experiences enlightenment, entertainment or self-illusions? Contrast chanting with a silent, motionless meditator, who, rather than loudly chasing after and trying to induce [...]