Changes in metaphor show differences in understanding the world and ourselves.

History of Light metaphor:
1. Primal opposites 32
2. Not opposites. Light stands by itself and destroys darkness
3. Plato's cave. Not struggle of light/dark. Truth is not only present, it is insistent
Light gives visibility and objecthood to things, but is different from them…Transcendence
Light is a showing, revealing. Makes things surveyable, understandable. Darkness cannot bring about identity.
4. The "unnatural" protection of the cave = cosmos. 34
Cosmos swallows light and exhausts it. Light is otherworldly.
Flight of Light- salvation, revelation, eschatological event. No longer being in light but looking into the light itself (while everything else that is visible becomes extinguished).
4 b. Cicero's "natural light" is interior moral light. 35-36

Cave
- an artificial screening from the natural light. A forgetting
5. Individual as Cave:
-Christ born in cave
- monastic cell
- "inner space of self possession" "facticity of the subject"
- Descartes's window metaphor

Recap thus far: Transcendence of light & internalization

6. Tale of Lost Light. Light no longer shines in the world to wake the world into Being. Rather, light gets lost in an alien and empty sphere.
(Light vs. representation 41)
Augustine- Distinction between light and light of lights, God. 42-43
Return to seeing-in-the-light from seeing-into-the-light, the "interior light" is always behind us.
Plato's terms, conversion, turning to the light.

Eye and Ear 44-46
- Eye and adjusting to light/dark in Plato's cave
- Absolutely dazzling. Seeing/not seeing
- Eye penetrating violence = touch
One becomes an-other
(Shutting eyes is going inward)
- good heathen eyes open in dark, bad christian eyes closed in light
Eye is mechanism in the metaphor
- Romantic darkness, dissolution of material things so light of Being can enter.

Greek. Certainty is Visibility
Jewish. Word is Real 46-48

Eye vs. Ear p. 48
Eye: Wanders, selects, approaches things. Active, Universal, Presence and iterabile (no unique and actual experience. Etc. 49), Science
Ear: Waits, Passive, Directed at someone or something, Tradition, unique and past on, Religion

Enlightenment 51-53
Read bottom 51-52 and bottom 52
Enlightenment has self/mind as searchlight in darkness of world. Points out what is to be seen/known.
Vs.
Middle Ages when they work on reverse model of believing with too much credulity in the world that shows itself to them.

"Truth is dubious as long as it lacks a well-ordered origin in method and well-ordered position in a system."
Consequently, it is perspective of seeing that matters.
Technological figure invades metaphors of light.
(Enter our Descartes on geometry & optics reading from ch. 2 of Levin and Descartes Physics from Cambridge Companion to Descartes).