a friend and i were on thomas mtn. at approximatley 8:30 pm and saw an object move from west to east. it randomly pulsed a white light. it came to a complete stop approximately over anza burrego. while stopped it would also flash an occasional bright flash of white light. one of the flashes resembled forked lightning going out of it horizontally and upward. it quickly moved north than shot south at the speed of a falling star and disappeared. when the object would flash you could see an outline of it, it was of a triangular shape and made no sound. we watched the object for approximately 15 minutes. it changed direction many times quickly then come to a complete stop. afterward both of us felt strange, both physically and mentally. we both felt as if we were groggy in a trance like state. we both felt confused. physically we felt a strange tingling and for me almost lethargic.