with the interest of the senses.

LETTER XV.

I approach continually nearer to the end to which I lead you, by a path
offering few attractions. Be pleased to follow me a few steps further,
and a large horizon will open up to you, and a delightful prospect will
reward you for the labor of the way.

The object of the sensuous instinct, expressed in a universal conception,
is named Life in the widest acceptation; a conception that expresses all
material existence and all that is immediately present in the senses.
The object of the formal instinct, expressed in a universal conception,
is called shape or form, as well in an exact as in an inexact
acceptation; a conception that embraces all formal qualities of things
and all relations of the same to the thinking powers. The object of the
play instinct, represented in a general statement, may therefore bear the
name of living form; a term that serves to describe all aesthetic
qualities of phenomena, and what people style, in the widest sense,
beauty.

Beauty is neither extended to the whole field of all living things nor
merely enclosed in this field. A marble block, though it is and remains
lifeless, can nevertheless become a living form by the architect and
sculptor; a man, though he lives and has a form, is far from being a
living form on that account. For this to be the case, it is necessary
that his form should be life, and that his life should be a form. As
long as we only think of his form, it is lifeless, a mere abstraction; as
long as we only feel his life, it is without form, a mere impression. It
is only when his form lives in our feeling, and his life in our
understanding, he is the living form, and this will everywhere be the
case where we judge him to be beautiful.

But the genesis of beauty is by no means declared because we know how to
point out the component parts, which in their combination produce beauty.
For to this end it would be necessary to comprehend that combination
itself, which continues to defy our exploration, as well as all mutual
operation between the finite and the infinite. The reason, on
transcendental grounds, makes the following demand: There shall be a
communion between the formal impulse and the material impulse--that is,
there shall be a play instinct--because it is only the unity of reality
with the form, of the accidental with the necessary, of the passive state
with freedom, that the conception of humanity is completed. R