The idea that one person's mind is accessible to another's is just a conversational illusion, just a figure of speech, an assumption that makes some kind of exchange between basically alien creatures seem plausible, and that really the relationship of one person to another is ultimately unknowable. The effort of fathoming what is in another's mind creates a distortion of what is seen.

Zen and the Art of Motorcycle Maintenance by Robert M. Pirsig