Your most fundamental drives are stitched into the fabric of your neural circuitry, and they are inaccessible to you. You find certain things more attractive than others, and you don’t know why. Like your enteric nervous system and your sense of attraction, almost the entirety of your inner universe is foreign to you. The ideas that strike you, your thoughts during a daydream, the bizarre content of your nightdreams—all of these are served up to you from unseen intracranial caverns.

David Eagleman, Incognito

The mysterious unconscious