No one, then, he says, can be saved or return (into heaven) without the Son, and the Son is the Serpent. For as he brought down from above the paternal marks, so again he carries up from thence those marks roused from a dormant condition and rendered paternal characteristics, substantial ones from the unsubstantial Being, transferring them hither from thence. This, he says, is what is spoken: “I am the door.” And he transfers (those marks), he says, to those who close the eyelid, as the naphtha drawing the fire in every direction towards itself; nay rather, as the magnet (attracting) the iron and not anything else, or just as the backbone of the sea falcon, the gold and nothing else, or as the chaff is led by the amber. In this manner, he says, is the portrayed, perfect, and consubstantial genus drawn again from the world by the Serpent; nor does he (attract) anything else, as it has been sent down by him. For a proof of this, they adduce the anatomy of the brain, assimilating, from the fact of its immobility, the brain itself to the Father, and the cerebellum to the Son, because of its being moved and being of the form of (the head of) a serpent. And they allege that this (cerebellum), by an ineffable and inscrutable process, attracts through the pineal gland the spiritual and life-giving substance emanating from the vaulted chamber (in which the brain is embedded). And on receiving this, the cerebellum in an ineffable manner imparts the ideas, just as the Son does, to matter; or, in other words, the seeds and the genera of the things produced according to the flesh flow along into the spinal marrow. Employing this exemplar, (the heretics) seem to adroitly introduce their secret mysteries, which are delivered in silence. Now it would be impious for us to declare these; yet it is easy to form an idea of them, by reason of the many statements that have been made.