“It” who?? You’ve apparently been reading too many fairy stories. 
This forum is for real practicing magickians, not folklore. Try learning practiced techniques from the occult community that are proven to work, maybe? This one would be great for just getting yourself parasitized, if anything. It’s a bad idea to “make deals” with random nobodies with no track record.
… although, if that’s your thing I do have this bridge I could sell you, great deal, it’s a strong investment I assure you.
Please do make your next post your Introduction here, which we need per the forum rules and see our posting guidelines in the FAQ.
Points to cover:
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Do you have any practical experience in magick?
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If so, what exactly do you practice and how long have you practiced?
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Do you follow any specific system or tradition?
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What are your areas of interest?
Here is a getting started with magick guide. You’ll want to get your spiritual hygiene sorted out, and start work on developing your astral senses, then when you can know you have a decent chance at avoiding impostors and parasites then try the evocation guides we have on here.
For reference:
The rules are here
The posting guidelines are here in the FAQ