Part of the reason Thoreau lights on fireplaces, chimneys, and hearths as indexical locations has to do with all that they mean in terms of warming centers.

Abstraction is no positive act: it is simply the negative of attention.

Then came a maid with hand-bag and shawls, and after her a tall young lady. She stood for a moment holding her skirt above the grimy steps,[…], and the light of the reflector fell full upon her.

Model 402 Laser Q Spoiler is designed to Q spoil laser beams up to 5/8" in diameter.