"You ought not to be surprised at what I tell you; for though our Globe be very vast, and yours little, though we die not before the end of Four thousand Years, and you at the end of Fifty; yet know, that as there are not so many Stones as clods of Earth, nor so many Animals as Plants, nor so many Men as Beasts; just so there ought not to be so many Spirits as Men, by reason of the difficulties that occur in the Generation of a perfect Creature." I asked him, if they were Bodies as we are? He made answer, That they were Bodies, but not like us, nor any thing else which we judged such; because we call nothing a Body commonly, but what we can touch: That, in short, there was nothing in Nature but what was material; and that though they themselves were so, yet they were forced, when they had a mind to appear to us, to take Bodies proportionated to what our Senses are able to know; and that, without doubt, that was the reason why many have taken the Stories that are told of them for the Delusions of a weak Fancy, because they only appeared in the night time: He told me withal, That seeing they were necessitated to piece together the Bodies they were to make use of, in great haste, many times they had not leisure enough to render them the Objects of more Senses than one at a time, sometimes of the Hearing, as the Voices of _Oracles_, sometimes of the Sight, as the _Fires_ and _Visions_, sometimes of the Feeling, as the _Incubusses_; and that these Bodies being but Air condensed in such or such a manner, the Light dispersed them by its heat, in the same manner as it scatters a Mist.