Some things recur because they are seen again.

Others recur because they happen again.

Motifs

A motif is something that repeats.

A word.
An image.
A sound.
An object.
A place.
A gesture.
An idea.

Its recurrence is worth preserving even when we don't yet know whether the individual appearances are directly connected.

A mirror can be a motif.

Water can be a motif.

Eyes can be a motif.

Roads can be a motif.

The recurrence is the observation.

What it means is a different question.

Effects

An effect is something the system appears to do.

Compress.
Divide.
Distort.
Suspend.
Consume.
Redirect.
Repeat.
Return.

An effect describes recurring behavior rather than recurring imagery.

Sometimes a motif participates in an effect.

A mirror may recur.

What happens when the reflection stops behaving like a reflection is something else.

Why Track Both?

Because noticing repetition is not the same thing as proving a relationship.

A recurring element does not automatically become a Callback.
A recurring behavior does not automatically tell us its mechanism.

Sometimes all we know is:
This keeps appearing.

Or:

This keeps happening.

That is enough to preserve it.
The Archive can ask why later.

Motifs

Things that recur.

Repeated language, imagery, symbols, sounds, environments, objects, gestures, and other identifiable elements.

Effects

Things that happen.

Recurring behaviors, states, transformations, pressures, shifts, distortions, and structural consequences.

A recurrence is not automatically a Callback.

Motifs preserve repeated elements.

Effects preserve repeated behavior.

Specific relationships between occurrences are evaluated separately.