རྟ་སྐད་འཚེར་བས་སྟོང་གསུམ་གཡོ༔
And resounding with the neighing cry of the horse which shakes the entire universe.
Sādhanas, Longchen Nyingtik, Takhyung Barwa, Hayagrīva, Tibetan Masters, Chatral Rinpoche