All ceremonies are different. But there is generally sacred music of some sort.  I have been in ceremonies where all i could do was lose my mind. And I have also been a facilitator who contributes With song, dance, moving energy.   It has been quite a journey.

DesertDave

I almost forgot the purging. That is a big part of it that scares people off. There tends to be vomiting. It is part of the experience. And can be very powerful. But it was scary to me at first. 

I have drank Ayahuasca over 100 times, AMA

I love to sit in such spiritual gatherings quite often. We, here in India, do have many traditional or religious awakening evenings where we sing, dance, enjoy and yes they are helpful in healing. 

Tell me, what activities you perform and which one is your favourite?