The EXIF header says it's a 15 second exposure. I think he's walking towards the camera with the light in his right hand, while swinging it from side to side in front of him. That accounts for the trails on the ground that are slightly tilted with respect to the path. The "ropes" in the air are the camera's line of sight view of the reflection from the inside of the aspheric bezel.It's a great shot, however he did it.