I am interested in Ecstatic Dance.  Do you know anything about this type of dance?
I think it's based on Gabrielle Roth’s "5Rhythms"  dance series
I'm not familiar with Roth or the dance series.  Can you tell me more about that?
Gabrielle Roth  was a theater dancer with a focus on Shamanism 
Was she from the United States?  I'm curious.
Yes she is an american Dancer. She also studied Yoga
Well, I just learned about Ecstatic Dance and was interested in how it developed.  Knowing about Roth helps me understand it more.  I love Yoga too.
Yoga
Yoga (; ; ) is a group of physical, mental, and spiritual practices or disciplines which originated in ancient India. Yoga is one of the six orthodox schools of Hindu philosophical traditions. There is a broad variety of yoga schools, practices, and goals in Hinduism, Buddhism, and Jainism. The term "yoga" in the Western world often denotes a modern form of Hatha yoga, yoga as exercise, consisting largely of the postures called asanas.
The origins of yoga have been speculated to date back
Gabrielle Roth
Gabrielle Roth (February 4, 1941 – October 22, 2012) was an American dancer and musician in the world music and trance dance genres, with a special interest in shamanism. She created the 5Rhythms approach to movement in the late 1970s; there are now hundreds of 5Rhythms teachers worldwide who use her approach in their work.
Roth worked at the Kripalu Center for Yoga & Health and at the Omega Institute for Holistic Studies. She founded an experimental theatre company in New York, wrote three books,