But devotion to activity begets an everlasting vigil after toils. Let not food weigh us down, but lighten us; that we may be injured as little as possible by sleep, as those that swim with weights hanging to them are weighed down. But, on the other hand, let temperance raise us as from the abyss beneath to the enterprises of wakefulness. For the oppression of sleep is like death, which forces us into insensibility, cutting off the light by the closing of the eyelids. Let not us, then, who are sons of the true light, close the door against this light; but turning in on ourselves, illumining the eyes of the hidden man, and gazing on the truth itself, and receiving its streams, let us clearly and intelligibly reveal such dreams as are true.