Many people actually believe that words, in of themselves have meaning, i.e. that you can actually use words as a savage uses a club.
But is that true? Let us go down to first principles, as Plato would say. What is the first principles of a human being?
The physical brain.
The physical brain produces a product called mind. Mind is the Method, by which human behavior is produced.
As a complete human being, we read the environment with our body, process the information, and write the conclusions of that processing back to the body. i.e. writing, as intimated in the Bible, is inclusive of your whole body, not idle words.
So, that is why, you always say what You mean. It is unavoidable. Your behavior, every bit of it, is a reflection of mental processing which is the perfect method of learning your entire mental ability.
Who, but a complete moron actually believes that they can simply wave away their bad behavior, by chanting idles words?
Words, in every possible grammar are used as mapping systems, aid in virtualization of the environment. One can learn, and be taught, how to read the maps to help in behavior, but some people never come up to even that level of literacy.