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Arts & Communication                                        Nebula rasa: The diaphanous in architectural design



            2. Historical background                           fully  experiences the  creative force  of  the Divine.   God’s
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                                                               energies are not special powers, but they are akin to divine
            The notion of the diaphanous derived initially from   potentials that can be experienced rather than talked
            Aristotle, although it is mentioned already in an embryonic   about.  This approach was derived from so-called apophatic
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            form in Plato’s Timaeus. In De Anima, Aristotle describes   (or negative) theology. The idea is that certain phenomena
            it as a phenomenon that renders objects visible. The   (like noetic light) cannot be described in determinate,
            word  diaphanēs  comprises  the  Greek  “dia”  (through)   clear concepts. All one can do is try to say what they are
            and “phainein” (to show). Importantly, Aristotle draws   not by tracing a silhouette that negatively demarcates them.
            an explicit parallel between “light,” the diaphanous and   There is a certain parallel with creative processes here:
            actuality:                                         often, it is hard to tell what defines a good idea or what
               “Light is as it were the proper colour of what is   influence contributed to its (final) form. Often, the (artistic)
               transparent, and exists whenever the potentially   concepts to define an idea clearly are lacking or have still
               transparent is excited to actuality by the influence of fire   to be invented, yet the creative impetus that shapes ideas is
               or something resembling ‘the uppermost body’; for fire   undeniably present.
               too contains something which is one and the same with
               the substance in question.”  4                    Due to semantic changes that occurred during translation
                                                               and the scattered usage of the concept in Medieval Europe,
              The link between potentiality, actualization, and   the notion of diaphanous became almost synonymous with
            an object or phenomenon that becomes visible can be   visual translucence or partial opaqueness. While this usage
            discerned in the wording: the excitation of the “potentially   is not explicitly ruled out by the original Greek concept,
            transparent”  into  something  actual  is  rendered  as  “phôs   it is worth remembering that Aristotle’s usage is certainly
            de estin hê toutou energeia, tou diaphanous hê diaphanès.”   broader and closely related to the phenomenal structure
            The word “energeia” does not just mean “energy” in   of perception, instead of being narrowly focused on the
            the way we commonly use it. It connotes activity or an   visual character of an image. In its modern, narrow usage,
            active operational principle. Anca Vasiliu notes that this   we easily equate diaphaneity with the visual characteristic
            way of framing the diaphanous stages is an “impossible   of being vague, ambiguous, nebulous, veiled, translucent,
            ontological encounter”: it conjoins the (i) subject’s sense   opaque, blurry, or indistinct.
            of sight, (ii) an external object to which the gaze is
            directed, (iii) the medium that ensures visibility or at least   Although this interpretation of the diaphanous
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            tangibility, and (iv) a principle of actualization.  Neither a   represents it as a visual characteristic, it also invokes a
            body nor a body’s property, the diaphanous participates in   creative, visual dimension due to the fact that it visually
            the visibility of everything, without being part of anything.   stages the “impossible ontological encounter” in the
            It is a phenomenal attribute that suffuses the visual realm   perceptual field. This generative aspect of the original
            and that structures and stages its accessibility.  Aristotelian concept becomes obfuscated if we focus only
                                                               on the diaphanous as a visual characteristic. Notably in
              When classical Aristotelian philosophy was transmitted   architectural design processes, such seemingly impossible
            to Medieval Europe through the Islamic world, the word   encounters are essential for developing ideas and design
            was rendered in Latin as  diaphanum, leading ultimately   concepts alike.
            to the introduction of the neologism  transparens and
            later on becoming synonymous with the Latin perlucida,
            which both connote visual transparency in the way that we   2    Pseudo-Dionysius provides allegorical descriptions of the
            commonly use the term.                                creative, dynamic force of the Divine. In this passage (1987:
                                                                  184), we can see how he introduces the ceaseless play of
              Some  of the properly  operative  nature of  the  original   creativity by comparing it to fire, a theme that François
            Greek  concept  was  retained  in  the  Eastern  Christian   Jullien would take up while discussing Chinese thought: “It
            theological context, whereby the presence of God was   lights up everything and remains hidden at the same time.
            equated with the character of light or so-called “noetic   In itself it is undetectable and becomes evident only through
            illumination.” This development can be traced back to   its own workings on matter. It is unstoppable. It cannot be
            Plato’s treatment of knowledge as illumination, using light   looked upon. Yet it is master of everything. Wherever it is,
                                                                  it  changes  things  towards  its  own  activity.  It  bestows  itself
            as a metaphor for achieving insight. Still, we can see the   upon all who draw near. (…). It makes distinctions and is
            influence of the Aristotelian concept, for instance in the   nevertheless unchanging. It rises up and penetrates deeply. It is
            thought of St. Gregory Palamas, who held that everyone   exalted and never brought low. It is ever on the move, moving
            participates in God’s energies – using the Greek word   itself and others. It extends in all directions and is hemmed in
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            energeia again.  God is immanently present throughout   nowhere.” Note how all this applies to the characteristics of
            creation, and in the moment of noetic illumination, one   both diaphaneity and the concept of shi (efficacy).

            Volume 2 Issue 1 (2024)                         3                         https://doi.org/10.36922/ac.1922
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