Rose, I know it is a little scary, even for me as a Christian the first time I saw it happen to someone I freaked out, we had went to the new church and the preacher touched this guy on the head and he started speaking in a language that they said only God could understand it was Gods language, and he was praising God in this language, and I understand that if two people are filled with the holly spirit then they can speak to each other, and this possession only lasted for a short period of time like five or ten minutes.
This never happened to me, or my wife, so we eventually left this church, but I also saw some people being healed of different illnesses. I no longer go to church, but I am still a spiritual person.