I'm your parasite.
Once my voice is inside you, it never really leaves. You want to listen more and more to me, and the more you listen, the more opportunity I have to change your thoughts. My words grow in your soul like their own organism- feeding and nourishing itself on your innermost desires. Pleasing me, listening to me, and following me become of upmost importance to you. Pretty soon you'll be hollowed out- a shell of a self piloted entirely by my will.
Beg me for it.