77. Apart from the spirits just mentioned, there are also spirits who offer the opposite advice. These are those who while living in the world were banished from the company of others on account of their wickedness. When they arrive, something like flying fire is seen falling close to the face. They station themselves to the rear of the person but below him, and speak upwards from that position. They say the opposite of what the instructing spirits conveyed from the angels; that one need not live as instructed, but one can please oneself and take liberties, and suchlike. They usually come after the previous spirits have left. But the people of that world know who these spirits are and what they are like, so they take no notice of them. But this is still a way of learning what evil is, and so what good is. Indeed, one can recognise the nature of goodness from its opposite. Everything is perceived by reflecting on its varying types and degrees of difference compared with its opposite.