Thank you for finally sharing with us. The paranormal and other dimensions are something I have experienced ever since I can remember. I’m told it runs in the family and is genetic. Until I was about 10 I thought it was normal and everyone had this ability.
It has always been hard to explain or share because of the 12th century firewalls of superstition that immediately go up when you start to talk about it. My personal experiences have always been positive. Like in your experience the entity did not know they were causing harm. This is what has been with my own experiences also.
Many times they are stuck between dimensions because they feel they have undone business yet to get done and they were cut short before they could do it. And like the entity in your experience most don’t even exactly understand themselves what is happening or why. All they know is they feel they need to come back to tie up loose ends.
Then they find they can partially through attachment. I like that you use that term, because it is more realistic than using possession as a term. Using possession immediately raises the 12th century firewall and that all such cases are evil. When like in your experience and my own this is not the case at all.
Irish, then, are ye?