I really don't know what you are talking about when you use words like "grammar". I am aware of the usage of "grammar" as the substrate of particular aspects of"reality" such as the evocation of "self as an agent"(subject) in relationship to action (verb). However you seem to wander off into a private semantic realm involving capitalised (hence mystical) terms like "Truth" , "Rules" and "Nature". Is this merely a leaning towards the "word magic" which underlies the verbal aspects of religion (prayer,chanting,ritual,holy writ, logos etc) ? If so, it is linked to hypnosis which some psychologists have explained as a regression to a child state in which the utterance of words like "ball" produce objects/realities "as though by magic" from the all powerful adult. Hence the semantic chain..Logos...God the Father...Truth.
I think there are two things being considered by these two posts, and I like them, the second more than the first... The first post has to deal with words and word magic, and the other has to do with the order we impose upon nature a'priori out of our need for order and control, and I think this as much as the first has to do with human Psychology, but is negative because old ideas must be violently shoved aside by new ideas, and the ideas don't get hurt; but people do... There was order in the universe before copernicus offered a new order, but science was hurt because he was timid, just as science was hurt because Galaleo was bold in ridiculing the old order, and he was hurt too... Our rules and laws which we presume of nature may be blinding us to the true-er state of affairs... How many years after Darwin are we still fighting his battle against metphysics??? Both sides have their order, and their laws; but what does that have to do with the true state of affairs which does not follow either course exactly???
Of the first, Word Magic, which I agree is at work here, is at work everywhere... People do not escape their childhood simply because they grow up, and humanity does not escape its childhood simply by growing older... We say: speak of the Devil when the subject of a conversation shows up; and we tell tales like Rumplestilskin... Into recent times primitive peoples would not reveal their true names to strangers for fear of giving power over themselves, and rhymes were once curses, and Carmen, Latin for song, and a girl's name meant: Charm... It is not just to primitive minds that the word is the thing... Thought would not be possible without being able to reference objects with names... Yes; supernatural beings can be invoked with a name... And so can every concept which the name is identical to be summoned into consciousness with a word... I make no claim to understanding of how minds work, but I do recognize that when humanity found how to share experience and problems, and pass knowledge between generations -that we took off as a species... Speech makes us human as our most essential tool because it brings the social mind to bear on all our problems... Perhaps it was this fact that gave primitives such an awe of names, because what people could talk about by name they could in time come to control...