{"id":2093,"date":"2026-06-09T16:32:03","date_gmt":"2026-06-09T16:32:03","guid":{"rendered":"https:\/\/veronikawenger.de\/?p=2093"},"modified":"2026-06-09T16:32:03","modified_gmt":"2026-06-09T16:32:03","slug":"ornament-as-world-operation","status":"publish","type":"post","link":"https:\/\/veronikawenger.de\/?p=2093","title":{"rendered":"ORNAMENT AS WORLD OPERATION"},"content":{"rendered":"
\"Veronika
Veronika Wenger
June 3rd, 2026, the PCMA UW Cairo Seminars at the PCMA Research Centre in Cairo.<\/figcaption><\/figure>\n

ORNAMENT AS WORLD OPERATION
\nVeronika Wenger<\/h2>\n

As part of the lecture
\nORNAMENT AND RHYTHM AS PRINCIPLES OF GESTALTUNG<\/em>:
\nMAKING THE INVISIBLE VISIBLE
\nat the PCMA Research Centre in Cairo
\nJune 3
\n2026<\/h3>\n
\"Linea
Linea Nera<\/em>, Veronika Wenger, 2024
100 x 65 cm, marker on plastic<\/figcaption><\/figure>\n

\u201cThe divine nature […], which repeats all visible works\u201d\u2013 thus writes Leonardo da Vinci about Disegno, the line as fundamental world operation.<\/p>\n

\"\"
Second half of 12th c.,
Byzantine and Christian Museum, Athens<\/figcaption><\/figure>\n

In the example of this Byzantine bowl, I can see the repetition of nature. I sense the person who formed this bowl and drew the line. They repeated nature \u2013 similar to how hands form a vessel to drink from. I see the material, the earth and the color, which repeat the forms of nature. I see the unity of the person, the bowl and the line as a performative act that lets the bowl arise with this line \u2013 as repetition of nature. And thus it becomes unity.<\/p>\n

\"Black
Black Line<\/em>, Veronika Wenger, 2017
Art Fair T\u00fcyap, Istanbul<\/figcaption><\/figure>\n

This unity is lost the more the line becomes decoration, sign or narration. But BEFORE this loss \u2013 when the line repeats itself without becoming sign \u2013 the ornament arises.<\/p>\n

\"For
For Claude<\/em>
Veronika Wenger, 2025
Stachus Passagen, Munich
Photo: rhythmsection.de<\/figcaption><\/figure>\n

Precisely in this moment \u2013 between the line as nature and the line as sign \u2013 lies the ornament. Or better: the world operation. For what the line performs \u2013 repetition, concatenation \u2013 is not decoration, but operation. An operation through which the world becomes visible. Ornament in this sense is not decoration, but the fundamental operation that makes the world visible.<\/p>\n

\"Mausoleum
Mausoleum der Galla Placidia, Ravenna (425-450 n. Chr.)<\/figcaption><\/figure>\n

The Byzantine ornament is not decoration, but world operation.<\/p>\n

\"Medusa,
Medusa<\/em>, Veronika Wenger, 2024
120 x 100 cm, marker, tape, spray, pencil on paper<\/figcaption><\/figure>\n

Ornament as world operation in Luhmann’s sense?
\nThe ornament as concatenation of distinctions \u2013 as infinite ornament, as infinite line?<\/p>\n

Niklas Luhmann refers to the form-calculus tradition of George Spencer-Brown. There we find concepts like form \u2013 the two-sidedness that arises through a distinction, marking \u2013 the act of distinguishing, distinction \u2013 the distinction itself, and the chaining of forms \u2013 the concatenation of distinctions.<\/p>\n

Specifically on the Byzantine meander:<\/p>\n

\"the<\/p>\n

For the infinite line, the infinite ornament: Re-entry \u2013 the re-entry of the form into the form, recursion \u2013 repeated application of the operation, self-reference \u2013 when a distinction is applied to itself.<\/p>\n

\"\u201csui
sui muri<\/em>
Veronika Wenger 2026
149 x 168 cm, pencil, marker, spray on paper<\/figcaption><\/figure>\n

Form and operation (Luhmann\/Spencer-Brown) describe precisely this concatenation of distinctions that continues and forms structures \u2013 similar to an ornamental pattern that arises through repetition of a basic element.<\/p>\n

\"The
The Virgin and Child<\/em>, Hagia Sophia<\/figcaption><\/figure>\n

And precisely here we encounter the Byzantine mosaic.<\/p>\n

The Byzantine mosaic is not decoration.
\nIt is the materialization of this operation:
\nEach tessera, each gold stone is a set distinction (marked).
\nThe in-between space, the joint material is unmarked.
\nThe stringing together of the small stones is chaining of distinctions.
\nThe golden surface is infinite ornament.<\/p>\n

The Byzantine mosaic is ornament as world operation.<\/p>\n

\"Stolper,
Stolper<\/em>, Veronika Wenger, 2025
175 x 150 cm, marker on paper<\/figcaption><\/figure>\n

The line repeats nature \u2013 it IS nature.
\nOnly when the line is guided by imagination does it become image.<\/p>\n

\"\u201cLast
Last supper<\/em>, Giotto di Bondone,
ca. 1303\/06 vor 1312\/13,
Bayerische Staatsgem\u00e4ldesammlung,
Alte Pinakothek M\u00fcnchen<\/figcaption><\/figure>\n

But the nimbus in Giotto does something radical: It conceals the imagined world, the depicted narration. The nimbus becomes ‘earthly’ \u2013 it shows color, painting not as symbol, but as repetition of ‘nature’, of reality in the form of color.<\/p>\n

\"\u201cLast
Last supper<\/em>, (Detail) Giotto di Bondone,
ca. 1303\/06 vor 1312\/13,
Bayerische Staatsgem\u00e4ldesammlung,
Alte Pinakothek M\u00fcnchen<\/figcaption><\/figure>\n

The nimbus creates an in-between space between painting and reality, between real and artificial, between earthly and divine \u2013 in a direct way, without telling a narrative story.<\/p>\n

The paradoxical operation:
\nThe image visible through knowledge becomes invisible through the nimbus. Parts fall out of the narrated image. What we ‘should’ know is concealed. What we see is color, form, repetition \u2013 ornament.<\/p>\n

\"\u201cLumpen\u201dVeronika
Lumpen<\/em>
Veronika Wenger, 2026
150 x 168 cm, marker, pencil, spray on paper<\/figcaption><\/figure>\n

Through the repetition of the nimbi, the form repeats itself as part of nature. The nimbus is not a symbol for ‘holiness’, but ornamental operation \u2013 like the line on the Byzantine bowl.<\/p>\n

\"Located
Located over the South door in the vestibule<\/em>,
the mosaic dates to the 10th century.<\/figcaption><\/figure>\n

What was conflict between space and nimbus in Giotto, is in the Hagia Sophia unity of ornamental world operation.<\/p>\n

In the Hagia Sophia EVERYTHING is ornament. The gold ground is not ‘background’ for the figures. It is not the empty space in which something takes place. The gold ground is infinite ornament \u2013 the concatenation of distinctions, materialized in thousands of gold tesserae.<\/p>\n

\"\"<\/p>\n

The stringing together of the gold stones is chaining of distinctions \u2013 the ornamental operation, the repetition of nature through color and form. The figures do not fall out of the ornament \u2013 they are part of it.<\/p>\n

The Madonna, Christ, the saints are not ‘depicted on golden ground’. They emerge from the ornament. They are condensations of the
\nornament (condensation in Luhmann’s sense).<\/p>\n

\"\"<\/p>\n

In Giotto the nimbus conceals the narration. In the Hagia Sophia the narration is dissolved by the ornament: Gold ground equals infinite repetition, figure equals condensation. But both are the same operation. The Byzantine mosaic is ornament as world operation. Not depiction of the world, but repetition of world operation through line, color, form.<\/p>\n

\"Title:\u201cThe
\u201cThe Idea of the Holy: An Inquiry into the Non-Rational Factor in the Idea of the Divine and its Relation to the Rational\u201d<\/figcaption><\/figure>\n

Rudolf Otto describes in ‘The Idea of the Holy’ (1923) the ‘writing on the wall’ as experience of the numinous: The numinous \u2013 the mysterium tremendum et fascinans \u2013 the holy that cannot be grasped in concepts, but can only be experienced.<\/p>\n

\"\u201cBelshazzar\u2019s
Belshazzar\u2019s Feast<\/em> (Detail)
Rembrandt 1635-1638
167,6 x 209,2 cm, oil on canvas
National Gallery London<\/figcaption><\/figure>\n

The ‘writing on the wall’ (Mene mene tekel u-parsin) cannot be understood through reading, cannot be interpreted through knowledge, but is unmediated confrontation with the holy.<\/p>\n

The writing is visible, but unreadable \u2013 until it is interpreted. But the EFFECT happens BEFORE the interpretation.<\/p>\n

\"\"<\/p>\n

The Byzantine mosaic functions precisely this way:<\/p>\n

It cannot be ‘read’ like an image (narration).
\nIt cannot be ‘understood’ like a symbol.
\nIt is unmediated presence \u2013 the experience of ornament as cosmos.<\/p>\n

The Greek inscriptions in the Hagia Sophia \u2013 the letters in gold tesserae \u2013 are visible, but unreadable for most.<\/p>\n

Ornament BEFORE writing.
\nForm BEFORE meaning.<\/p>\n

Repetition of nature through the ornamental line of the letter.<\/p>\n

\"\"<\/p>\n

Precisely like the ‘writing on the wall’ in Rudolf Otto: The effect happens before the interpretation, through the unmediated presence of form.<\/p>\n

Rudolf Otto’s ‘numinous’ and ‘ornament as world operation’ converge: Both are not representational. Both work unmediated. Both show the invisible through making visible. Both are beyond narration and symbol.<\/p>\n

In Byzantium: The ornament is not decoration of the holy. The ornament IS the holy \u2013 as repetition of divine world operation, as infinite line, as cosmos.<\/p>\n

\"Wei\u00dfdorn,
Wei\u00dfdorn<\/em>, Veronika Wenger, 2025
175 x 150 cm, spray, pencil, marker, tape on paper<\/figcaption><\/figure>\n

Rudolf Otto:
\nThe writing works BEFORE the interpretation \u2013 unmediated presence of the numinous.<\/p>\n

\"\u201cSaturday
Saturday Night, <\/em>Veronika Wenger, 2023
130 x 150 cm, spray, marker on synthetic fabric<\/figcaption><\/figure>\n

H\u00f6lderlin:<\/p>\n

Gold performs the same double operation.
\nGold simultaneously makes the invisible visible
\n(the divine becomes experienceable)
\nand the visible invisible
\n(the earthly is obscured, blinded).<\/p>\n

\"\"<\/p>\n

Three examples from H\u00f6lderlin’s hymn Patmos:<\/p>\n

‘The gold-adorned Pactolus’: ‘Blinded’ equals too much light. The visible city becomes
\ninvisible. The invisible (divine, transition) becomes visible.<\/p>\n

‘The golden bridle holds the courage’: Dampens the ‘sharp ray’ (divine light). Conceals
\nthe unbearable. Makes it experienceable at the same time. Like Giotto’s nimbus!<\/p>\n

‘As if bound by golden ropes’: The god hastens in the distance (becomes invisible). The
\ngolden ropes make the relationship visible. Conceal the god as person. Show only the
\nconnection.<\/p>\n

\"Jesus
Jesus Christ<\/em> (detail)
Deesis Mosaic, 13th century CE, Hagia Sophia, Istanbul, Turkey<\/figcaption><\/figure>\n

Byzantine gold ground (Hagia Sophia), Giotto’s nimbus (conceals narration), Otto’s writing on the wall (works before interpretation),
\nH\u00f6lderlin’s gold (in-between space) operate in different systems \u2013 but they perform the same form of operation: Gold is the in-between space \u2013 not spatial, but operational.<\/p>\n

The gold of the Byzantine mosaics is not background (earthly space), is not symbol (divine meaning), but presence of mediation itself.<\/p>\n

Each gold tessera performs the double movement: Reflects light (makes invisible visible), blinds simultaneously (makes visible invisible), is material AND light, is earthly AND divine.<\/p>\n

\"\"<\/p>\n

Like H\u00f6lderlin’s ‘golden bridle’ \u2013 it holds and enables simultaneously.
\nLike H\u00f6lderlin’s ‘golden ropes’ \u2013 it binds visible and invisible together.<\/p>\n

The Byzantine gold is not color that depicts something.<\/p>\n

It is color that performs something:
\nthe operation of mediation between cosmos and form.<\/p>\n

Ornament as world operation.<\/p>\n

\"Seraphim
Seraphim in dome pendentive of Hagia Sophi<\/em>a,
probably from the mid-14th century (post-dating an earthquake of 1344).<\/figcaption><\/figure>\n

The Byzantine ornament is not decoration. It is world operation \u2013 the infinite line, the concatenation of distinctions, the repetition of nature through color and form.<\/p>\n

It is the in-between space in which the invisible becomes visible and the visible becomes invisible.<\/p>\n

It is the holy itself \u2013 not as symbol, but as enactment.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

ORNAMENT AS WORLD OPERATION Veronika Wenger As part of the lecture ORNAMENT AND RHYTHM AS PRINCIPLES OF GESTALTUNG: MAKING THE INVISIBLE VISIBLE at the PCMA Research Centre in Cairo June 3 2026 \u201cThe divine nature […], which repeats all visible works\u201d\u2013 thus writes Leonardo da Vinci about Disegno, the line as fundamental world operation. In […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,174],"tags":[289,286,288,287,2],"class_list":["post-2093","post","type-post","status-publish","format-standard","hentry","category-news","category-text","tag-making-the-invisible-visible","tag-ornament-and-rhythm-as-principles-of-gestaltung","tag-ornament-as-world-operation","tag-pcma-research-centre-in-cairo","tag-veronika-wenger"],"_links":{"self":[{"href":"https:\/\/veronikawenger.de\/index.php?rest_route=\/wp\/v2\/posts\/2093","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/veronikawenger.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/veronikawenger.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/veronikawenger.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/veronikawenger.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2093"}],"version-history":[{"count":10,"href":"https:\/\/veronikawenger.de\/index.php?rest_route=\/wp\/v2\/posts\/2093\/revisions"}],"predecessor-version":[{"id":2124,"href":"https:\/\/veronikawenger.de\/index.php?rest_route=\/wp\/v2\/posts\/2093\/revisions\/2124"}],"wp:attachment":[{"href":"https:\/\/veronikawenger.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2093"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/veronikawenger.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2093"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/veronikawenger.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2093"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}