Hello all, I came across tiktoks on Nooran sisters and since then I have been listening to them. I am in awe of their voices and their struggle to get to where they are. Proudly taught by their father who was immensly talents yet didnt make it big. What I want to know: Sometimes they are singing 'normally' and sometimes they appear to be possessed ( please, I dont mean in a bad way). Hysterical clapping and head banging and also the singing changes while these are happening. Please can someone help me understand what is this high they are getting?. Is this a type of sufi singing?. They seem to do it only in religious performances. When the perform movie songs which are still religious; they are 'normal'. Again, I dont mean to offend anyone.. I am just curious.