'But there's no way that I could know what you've experienced, right? I couldn't possibly feel that need. Like a thousand hiding voices whispering "This is who you are". And you fight the pressure. The growing need rising like a wave. Prickling and teasing and prodding to be fed. But the whispering gets louder, until they're screaming "Now!" And it's the only voice you hear. The only voice you want to hear. And you belong to it. To this … shadow self. To this … dark passenger.'
Dexter, Episode 2.03