Black Portal Sucking My Soul?

I was 15 years old at this time, I still remembered I was living in Italy lido nord. A out skirt near rome like 30m away a apartment. Me and my brother were playing video games we tilted our head to look at the window. Now inside the window brings you out side kind of like a closed alley. In order to get in there you need to have a key and open another window from the other side. If someone leaves you hear the window shut close. Anyways we saw someone pass by my bro took a look the guy was gone. He looked like a plumer trying to fix something. On the other side there was my dad in the washroom he had a window he said he did not see anything when he looked at the window. I found it strange, we all asumed it was a spirit. I took a nap on my bed wich was in that room Bunck bed. On top went on my bed and took a nap. This part is strange right after we saw the spirit my body started coming out of my body!?!. I saw my self laying down sleeping and on the buttom I saw my bro playing video games. I got scared the worst part was on the right side of the wall I saw a black portal trying to suck me inside. Something was telling me not to go in the portal was evil. I don't know I got So scared trying to fight it getting away than I broke free quickly going in my body. After I wake up screaming scared taking deeb breath. Anyways this was the last time this happened to me what could mean? After e year I moved to canada evrething went normal. It never happens again thank God but I'm scared what could this mean?