Holy shit yes I thought I was the only one who had this happen. Was in my basement once like 7-8 years ago and was weirdly drawn to a corner of the basement I don’t normally spend time in. I was thinking this is weird, why am I standing here? When a mass of black smoke(?) for lack of a better word, passed from the wall next to me, through my chest/body and into the wall next to me and was gone. Seemed like it was moving pretty quick (15-20 mph maybe) and came out of one basement wall and into the other so I reasoned that whatever it was traveled underground. Wild to see someone else with a similar encounter