In the previous post, we introduced a simple but powerful idea: the architecture of systemic functional linguistics is best understood not as a set of objects but as a set of perspectives on semiotic potential. Today, we examine the first of these perspectives — instantiation.
Instantiation is often framed as a distinction between system and instance, or between potential and text. A system is a repository of options; a text is a realised selection from that repository. On the surface, this appears to be a straightforward, almost mechanical distinction. But from the vantage of relational ontology, it is profoundly richer.
The Relational Perspective
Consider the semiotic potential itself: a network of choices, constraints, and affordances. This network is not yet a text; it is a space of possibility. From one perspective — the potential pole — we construe it as a system. From the other — the instance pole — we construe it as a text.
The shift from system to text is not a temporal process. A text does not “emerge” from the system as if the system were some raw material waiting to be shaped. Rather, system and text are two perspectives on the same relational configuration. One asks, “what could be selected?” The other asks, “what has been selected here?”
Viewed this way, instantiation becomes a perspectival rotation, not a causal process. It is the lens through which we view semiotic potential:
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From the potential pole: the system, the organised resource of meaning.
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From the instance pole: the text, the actualised selections and configurations.
The two poles are complementary. Neither introduces new entities; both are construals of the same underlying relational field.
Implications for Analysis
Understanding instantiation as perspectival has immediate consequences for analysis:
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The text does not exhaust the system. Any instance is necessarily partial — it selects, configures, and foregrounds only a subset of the potential.
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The system does not prescribe the text. The relational configuration of potential allows multiple, equally valid instances; construals are directional but not deterministic.
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The semiotic event is always relational. What we call “system” and “instance” are co-dependent perspectives; neither can be fully specified without the other.
This view also clarifies a subtle but persistent confusion in linguistic theory: the temptation to treat “system” as a static object and “text” as its concrete realisation. Instantiation is not about substance or materiality; it is about perspectival position along a cline of possibility.
Instantiation as a Coordinate
If we return to the metaphor introduced in the first post — that systemic theory is a coordinate system for semiotic potential — instantiation forms the first axis. Every semiotic phenomenon can be located somewhere along this axis:
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Close to the potential pole: high abstraction, many possibilities, low actualisation.
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Close to the instance pole: high actualisation, specific selections, low remaining potential.
The text and the system are therefore not two different things but two ways of seeing the same landscape. Analysts shift along this axis to examine either the organisation of potential or the structure of an event.
Closing Thought
Viewing instantiation as a perspective rather than a process transforms our understanding of systemic functional linguistics. It invites us to see language as relational potential, and texts as construals within that relational space.
In the next post, we will turn to stratification, exploring how the same semiotic potential can be construed across multiple levels — context, semantics, lexicogrammar, and phonology — each providing a distinct lens on the same underlying configuration.
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