How we have the preferred representative system for the realized thinking, we have preferred means for introduction of information to the realized thoughts. Perfect memory would contain a full set of pictures, sounds, feelings, smells and tastes of initial experience, but we prefer to address only to one part of a set to restore experience. Remember the holiday.
Communication begins with our thoughts, and we use words, tone of a voice and language of gestures to transfer them to other person. And what such think? There is a set of various scientific answers, and still that represents our own thinking is well familiar to each of us. One useful way to think of thinking consists in thinking that we use our sense organs in the internal way.