If Heraclitus locates the capacity for logos in psyche, we can see how important psyche has become. With this speech/thought, human beings organise their world just as the divine principle forms the universe as a whole. Another fragment may suggest that Heraclitus did associate logos in this meaning with psyche. B 107 says: 'poor witnesses for people are eyes and ears if they possess barbarian psychaz~. Heraclitus uses an adjective for psychai clearly related to language. 'Barbarians' were those who did not understand the Greek language, even though they experienced the words that were uttered. 'Barbarian' psychai would, then, it appears, be those which do not grasp the meaning of the information that eyes and ears provide. The universe with its varied yet unified phenomena remains a foreign language to them. We may suggest that such psychai are perhaps 'moist', not 'fiery' in nature. What Heraclitus approves of are psychai that are not 'barbarian'. These would understand the 'language' of the universe. They would come to see that the universe itself is a language, logos, a divine expression varied and unified in nature.
— Shirley Darcus Sullivan
Heraclitus is making a hierarchy here, and it is worth pausing on what he is actually ranking. The "barbarian" psyche is not ignorant in the ordinary sense — it receives the same raw data from eyes and ears that any other psyche does. What it lacks is translation: the capacity to hear the world as speech, to catch the logos moving through phenomena. The dry soul, the fiery soul, the one Heraclitus approves — that soul understands the universe as a unified expression, cosmos as grammar.
This is seductive, and the seduction is the problem. Once the psyche is defined by its relationship to logos — to the ordering, comprehending, unifying principle — everything wet, moist, inarticulate, and dispersed becomes deficiency. The Homeric interior, with its *thūmos* and *kradie* and the middle-voice events no one authors, was already being quietly devalued before Plato set foot on stage. Heraclitus reads now like a proto-rationalist despite himself: praising the soul that grasps unity, distrusting the soul that remains in the noise. The fragment B 107 is not a warning against spiritual bypass — it is one of its earliest architectural moves, building the room in which transcendence of the merely sensory becomes the soul's highest calling.
Shirley Darcus Sullivan·Psychological and Ethical Ideas What Early Greeks Say·1995