You find it easier to explain how your powers work and people will have an easier time accepting it in a way that works for them. There can't be some misunderstanding on what you can or can't do unless you purposely make yourself vague.
To the greater world, your out-of-context powers will be forcefully shoved into some random explanation. Maybe your magical totems are some kind of Tinker restriction or psychic powers are some kind of PR move. If you choose to, even doctors doing in-depth medical scans would treat the strange growth in your brain as normal.