This view also is taken by those skilled in medicine, that according to the differences of complaints the visions of dreams appear differently to the patients: that the visions of those of weak stomach are of one kind, those of persons suffering from injury to the cerebral membrane of another, those of persons in fevers of yet another; that those of patients suffering from bilious and from phlegmatic affections are diverse, and those again of plethoric patients, and of patients in wasting disease, are different; whence we may see that the nutritive and vegetative faculty of the soul has in it by commixture some seed of the intelligent element, which is in some sense brought into likeness to the particular state of the body, being adapted in its fancies according to the complaint which has seized upon it.

Moreover, most men's dreams are conformed to the state of their character: the brave man's fancies are of one kind, the coward's of another; the wanton man's dreams of one kind, the continent man's of another; the liberal man and the avaricious man are subject to different fancies; while these fancies are nowhere framed by the intellect, but by the less rational disposition of the soul, which forms even in dreams the semblances of those things to which each is accustomed by the practice of his waking hours.

Τοῦτο καὶ πολλοῖς τῶν τὴν ἰατρικὴν πεπαιδευμένων δοκεῖ͵ παρὰ τὰς τῶν παθημάτων διαφορὰς καὶ τὰς τῶν ἐνυπνίων ὄψεις τοῖς κάμνουσι γίνεσθαι, ἄλλας μὲν τῶν στομαχούντων͵ ἑτέρας δὲ τῶν κεκακωμένων τὰς μήνιγγας καὶ τῶν ἐν πυρετοῖς πάλιν ἑτέρας͵ τῶν τε κατὰ χολὴν καὶ τῶν ἐν φλέγματι κακουμένων οὐ τὰς αὐτὰς καὶ τῶν πληθωρικῶν καὶ τῶν ἐκτετηκότων πάλιν ἄλλας. Ἐξ ὧν ἔστιν ἰδεῖν͵ ὅτι ἡ θρεπτική τε καὶ αὐξητικὴ δύναμις τῆς ψυχῆς ἔχῃ τι καὶ τοῦ νοεροῦ συγκατεσπαρμένον αὐτῇ διὰ τῆς ἀνακράσεως͵ ὃ τῇ ποιᾷ διαθέσει τοῦ σώματος τρόπον τινὰ ἐξομοιοῦται͵ καὶ τὸ ἐπικρατοῦν πάθος ταῖς φαντασίαις μεθαρμοζόμενον.  

Ἔτι δὲ καὶ πρὸς τὰς τῶν ἠθῶν καταστάσεις τυποῦται πολλοῖς τὰ ἐνύπνια. Ἄλλα τοῦ ἀνδρείου͵ καὶ ἄλλα τοῦ δειλοῦ τὰ φαντάσματα, ἄλλοι τοῦ ἀκολάστου ὄνειροι καὶ ἄλλοι τοῦ σώφρονος, ἐν ἑτέροις ὁ μεταδοτικὸς καὶ ἐν ἑτέροις φαντασιοῦται ὁ ἄπληστος͵ οὐδαμοῦ τῆς διανοίας͵ ἀλλὰ τῆς ἀλογωτέρας διαθέσεως ἐν τῇ ψυχῇ τὰς τοιαύτας φαντασίας ἀνατυπούσης οἷς προειθίσθη διὰ τῆς καθ' ὕπαρ μελέτης͵ τούτων τὰς εἰκόνας καὶ ἐν τοῖς ἐνυπνίοις ἀναπλαττούσης.