We have just demonstrated that sensation belongs exclusively to an
embodied soul, and that this implies organs. But we have nothing to
do with the question whether the perceived object must be in contact
with the organ, or whether the sensation can take place at a distance
from the sense-object, by means of an intermediary; as the case of
the fire which is located at a distance from our body, without the
intermediary's suffering in any manner. It happens again where, empty
space serving as intermediary between the eye and the color, one may
well ask whether, to see, it suffice to possess the potentiality proper
to that organ. But it is sure that sensation is some activity of the
soul in a body, or through a body.