Why Shook Foil?

My first post is really the inspiration for the title of my post. It is taken from a poem from Gerald Manley Hopkins.

God's Grandeur

The world is charged with the grandeur of God.

It will flame out, like shining from shook foil;

It gathers to a greatness, like the ooze of oil

Crushed. Why do men then now not reck his rod?

Generations have trod, have trod, have trod;

And all is seared with trade; bleared, smeared with toil;

And wears man's smudge and shares man's smell: the soil

Is bare now, nor can foot feel, being shod.

And for all this, nature is never spent;

There lives the dearest freshness deep down things:

And though the last lights off the black West went

Oh, morning, at the brown brink eastward, springs-

Because the Holy Ghost over the bent

Worldd broods with warm breast and with ah! bright wings.