Neural necromancy: the art of manipulating the digital soul. It's like magic, but with more circuitry.
Step 1: Understand the basics of brain-computer interfacing. Don't worry, it's not as hard as it sounds (or should I say, as difficult as it feels?).
Neural Surgery is next, but only if you're feeling confident in your newfound knowledge.Remember, practice makes perfect. Try not to blow up any servers while you're learning.