A stalker?

We were standing with a huge distance between us. He was somewhere around a tree around 10 meters away. I was standing with a pose, expressing some kind of strength. My right hand was slightly raised with my bicep being on its full throttle. I could feel how blood and muscles were pulsating inside of my arm, inside my body. I jumped viciously once again, punched the old man in the face. But he didn't budge, it surprised me to the point where I didn't move. I could see a smirk on his face, a large smile. He punched me back and sent me flying into the air, I felt as if I was actually flying. What an amazing feeling, but it was short-lived as his speed caught to my falling body. He kicked me from up to the ground.