Given that understanding is based on Experiential Gestalts, it follows that communication is partial.
Lakoff and Johnson, pp. 224-5:
> [That our experience is structured holistically in terms of experiential gestalts] is not to deny the possibility that what something means to me may be based on *kinds* of experiences that I have had and you have not had and that, therefore, I will not be able to *fully* and *adequately* communicate that meaning to you. However, metaphor provides a way of *partially* communicating unshared experiences, and it is the natural structure of our experience that makes this possible.