merely seen, but not looked
at, is excluded as so much _blank_ or _otherness_; whatever is, on
the contrary, _included_ is thereby credited with the quality of
belonging, that is to say being included, together. And the more the
attention alternates between the measuring of _included_ extensions
and directions and the expectation of equivalent (symmetrical or
rythmical) extensions or directions or stresses, the closer will
become the relation of these items _included_ by our attention and
the more foreign will become the _excluded otherness_ from which,
as we feel, they _detach themselves._ But--by an amusing
paradox--these lines measured and compared by our attention, are
themselvesnot only _excluding_ so much _otherness or blank;_ they also
tend, so soon as referred to one another, to _include_ some of this
uninteresting blankness; and it is across this more or less completely
included blankness that the eye (and the imagination!) draw such
imaginary lines as I have pointed out with reference to the
constellations. Thus a circle, say of red patches, _excludes_ some of
the white paper on which it is drawn; but it _includes_ or _encloses_
the rest. Place a red patch somewhere on that _enclosed_ blank; our
glance and attention will now play not merely along the red
circumference, but to and fro between the red circumference and the
red patch, thereby establishing imaginary but thoroughly measured
and compared lines between the two. Draw a red line from the red
patch to the red circumference; you will begin expecting similar
lengths on the other sides of the red patch, and you will become
aware that these imaginary lines are, or are not, equal; in other
words, that the red patch is, or is not, equidistant from every point of
the red circumference. And if the red patch is not thus in the middle,
you will expect, and imagine another patch which _is;_ and from
this _imaginary centre_ you will draw imaginary lines, that is you
will make by no means imaginary glance-sweeps, to the red
circumference. Thus you may go on adding real red lines and
imaginary lines connecting them with the circumference; and the
more you do so the more you will feel that all these real lines and
imaginary lines and all the blank space which the latter measure, are
connected, or susceptible of being connected, closer and closer,
every occasional excursion beyond the boundary only bringing you
back with an increased feeling of this interconnexion, and