Brain exhaustion? May you elaborate?

Foucault is a bit postmodernist -- i.e. the language and thought process in his writing can be quite difficult to follow -- some sentences I just can't get the meaning of at all.

Excerpt near beginning of said book:

"The oneiros is that which to on eirei, "tells what is real." It tells what is, what is already inscribed in time's unfolding and will come true as an event in the not-too-distant future. It is also that which acts on the soul and excites it-oneirai. The dream alters the soul, it fashions and shapes it; it leads it into dispositions and induces movements in it corresponding to what is shown. Further, one recognizes in this word oneiros the name of the beggar of Ithaca, Irus, who carried the messages that were entrusted to him." Term by term, then, enypnion and oneiros are opposed to each other: the first speaks of the individual, the second of events in the world; one originates in the states of the body and the mind, the other anticipates the unwinding of the temporal chain; one manifests the action of the too-little and the too-much in the domain of appetites and aversions, the other alerts the soul and at the same time shapes it. On the one hand, the dreams of desire tell the soul's reality in its present state. On the other hand, the dreams of being tell the future of the event in the order of the world.

A second cleavage brings another form of distinction to each of the two categories of "nocturnal visions." There is that which reveals itself clearly and transparently, requiring no decipherment or interpretation, and that which displays itself only figuratively, in images telling something different from their first appearance."

wow, naptime already..?

It'll take me some time to figure out what you just said, but I do enjoy dream theories.