Usually it is your own spirit allies to ask. Where and why that harasser comes from, or where/whom to ask more questions?
SOmetimes spirits just do what they do according to their nature or because they can - like ordinary human thug. There are different ways to imprison a spirit, tobaccotraps for instance. It can be lured, tricked by gifts to become your co-worker. Possibilities are endless.
Yes, I had pretty much the same advice from a member on another forum. Thank you.
As far as persuading it to be a Spirit Helper is going to be difficult or impossible. You see it is in thrall to a (minor) demon, and the demon is p*ssed off at me. Half a year ago or so it was sent to me as a warning from the demon....its purpose was to frighten me into submission. I had to wound the Hunter to send a message of my own to the demon..."Don't f*ck with me."
If I understand things right the Hunter is here to get revenge on me, not that the demon sent it back.
(I know this all sounds fantastic and unreal, but you really can't make this stuff up.)