Analysis of An English Wood

This valley wood is pledged
To the set shape of things,
And reasonably hedged:
Here are no harpies fledged,
No rocs may clap their wings,
Nor gryphons wave their stings.
Here, poised in quietude,
Calm elementals brood
On the set shape of things:
They fend away alarms
From this green wood.
Here nothing is that harms -
No bulls with lungs of brass,
No toothed or spiny grass,
No tree whose clutching arms
Drink blood when travellers pass,
No mount of glass;
No bardic tongues unfold
Satires or charms.
Only, the lawns are soft,
The tree-stems, grave and old;
Slow branches sway aloft,
The evening air comes cold,
The sunset scatters gold.
Small grasses toss and bend,
Small pathways idly tend
Towards no fearful end.