Here is another academic convenience.
Scholars identify it as such because of its aesthetic style and the choice of colors.
The primary indicator, however, is its emphasis on dream continuity and on the permeability of time.
A Theory of Dreaming
We may conceive of individual dreams which we designate by special names,
but there are echoes heard along the dream spectrum or in a dream collection.
On account of the echoes, it seems impossible to say with certainty
where my great-grandmother’s dreams end and mine commence.
Or where great-grandfather’s nightmares stop and mine begin.
Where shall we find the starting-point for such a standard?