Don't try this at home! This is a Pentecostal service known as "The Toronto Blessing". It took place some time in the 1990s at a church near the Toronto airport, and started a nationwide movement of cackling and howling that went on for some years. But then it all went underground. Can't imagine why! The recent revival is much more sedate, and much of the crawling around, mooing and quacking (along with walking people on leashes, which I found especially kinky) has been toned down. Not only that - they're now claiming that hardly any of this actually happened! It was just tiny isolated little episodes which have been blown out of proportion by the usual villain, THE MEDIA. (Blame God for the rest.)
Most Pentecostals rail and thunder at this stuff and think it's the work of the devil. I DO think it's bullshit, and a form of getting yourself off, if you don't mind me saying so. Kenneth Hagin did some great work here, but it's extremely creepy. He walks around the crowd making "whoosh"ing noises at everybody while his helpers hold him up so he won't fall over. What scares me is that Hagin started off more-or-less "straight" - a normal, if there is such a thing, fundamentalist preacher. Then he got corrupted, I guess. It makes for very entertaining viewing, as do the disavowals by the OTHER right-wing/Pentecostal Christians. I guess there is a right and a wrong way to experience God.