i do 10-12km runs , one evening ran by this park when my mother called me on my phone asking me to pick her up from station it was dark and rain was starting , normally she would walk on her own , nevertheless i strolled into the park and seen something in the corner of my eye which i ignored and thought it was just some random illusion from dark and all the trees and grass and wind and rain, so i kept on walking and then it got more real more material, it had no shape it had no feel, but it started to take control off my body, put me in a trace like state where i kept on walking towards it, it looked like a block hole that was sucking up all the material objects around it , but not actually sucking it up more like taking light and replacing its place with a dark dark deep immaterial unshaped thing, i knew this was real cause it looked nothing like the movies or stories, it was definitely intermdimensional and it had no material shape in our dimension only overlaying emptyness without touching anything in 3d space with a darkness and deep light absorbing thing , anyway as i was slowly moving towards it the world around me lit up , i could see the grass trees etc as if it was light outside but i could still see it was dark really dark , almost like i was seeing the day and night in one but in my mind, i couls focus on each grass folic and see it in precise detail with full light on it, my phone rang just before i got close to it and interrupted everything i snapped out of my situation fear took over and fleeing was the next thing , i was so scared wondering if that just happened or if somehow i fell asleep or what the hell was it, but as soon as i was out of that park i felt normal again and also safe like i knew it couldnt follow me outside