Gary asked: "Is your dream experience a perception? If so, does your
dream experience entail a causal relation between the dreamed-thing and
you, the dreamer? "
Of course! I awake -- I remember it -- I therefore act differently than
if I had not dreamed it! For instance, I may relate it (the dream) to my
wife.My perception of the unreal entity has caused some change to happen
in the real world.