Decoud's declaration of love is couched specifically in the language of idealism:
it is an "almost" otherworldly thing. The word "felicity"
is carefully-chosen: it means both "bliss" and "pleasing style,"
the latter reminding us that even passionate love is a dream-ideal, an artifice.
This is especially true with Decoud, who chooses love with full conscious knowledge
that it is a "supreme illusion."