Riddle me this.

[green_dreams]

Cooking up riddles.[1]

1. Answer is three words long, a small phrase which may seem nonsensical out of context (originally Biblical, although it shows up elsewhere, rarely).

You can first through my third, and my second is small.
My third's clear as air, and keeps open the wall.
In my first you drift under or hide from the sun.
My second is tiny. This clue has a pun.

EDIT:
You can first through my third, and my second is small.
My third's clear as air, and keeps open the wall.
In my first you drift under or hide from the sun.
My second is tiny. This rhyme has a pun.
My all would stretch crystalline under the sky;
An illusion of water, a trick to your eye.

2. Answer is one word.

I stand watching in wind and in sun and in rain,
Unmoving. Indifferent. And lacking a brain.
And brainless I guard there, and this may be why
My whole does my first, sends my second to sky.

I like doing these. They're trivial, but fun.
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[1] There's a guessing game going over at sinandsalvation; basically, if you guess the name of whatever's being riddled about, you (1) get the scent sent to you and (2) are expected to carry on the game. I'm just curious as to how well these riddles work for people who aren't familiar with the catalogue. I *think* they're pretty good--which is good, since the game is meant to be accessible to those not consumed by BPAL madness--but I'm curious.