There are only inflexible communicators. If you can adjust well enough to the world of the person you are communicating with, you will not meet any resistance. Mind and body are parts of the same system. Mind influences body and body influences mind. There is no clear border between psyche and soma, they are different aspects of the same system.
People communicate on both conscious and unconscious levels.
Most of human communication is on an unconscious level, i.e. by bodylanguage, tone of voice, intonation of words etc. Change is usually easier to accomplish through communication addressing both conscious and unconscious resourses. You can not fail to communicate. Even being perfectly still and quiet contains a message if anyone percives it. The ability to change the process by which we experience reality is more often valuable than changing the content of our experience of reality.