I agree, yet non-verbal is extremely important for in-situ, in the now, personal and interpersonal well being. N-Verbal can even make Verbal communication moot since one can say anything depending on its emotional state. Also, some things are extremely hard to describe by words yet can be conveyed with a silence, a look in the eye, a gesture.
I really agree about the abstract possibilities of speech, but I a bit annoyed at the fact in one's existence, the non verbal cues are so important, yet so often boldly ignored, and almost never taught.