Henry Munn
<p class="MsoPlainText">Henry Munn's essay: The Mushrooms of Language: Hallucinogens and Shamanism, M. J. Harner (1973)  Oxford
University Press
 
I cannot recall ever hearing you referring to Henry Munn's essay: The Mushrooms of Language: Hallucinogens and Shamanism, M. J. Harner (1973)  Oxford
University Press.   This seems to have been Terence McKenna's original inspiration for his notions about trans-linguistic matter etc.   This is a direct quote I found online today:
 
            “It is not I who speak,” said Heraclitus, “it is the logos.” Language is an ecstatic activity of signification. Intoxicated by the mushrooms, the fluency, the ease, the aptness of expression one becomes capable of are such that one is astounded by the words that issue forth from the contact of the intention of articulation with the matter of experience – Henry Munn
(<a href="http://psychedelicsandlanguage.com/xenolinguistics/natural-unnatural-language/">http://psychedelicsandlanguage.com/xenolinguistics/natural-unnatural-language/</a>)</p>