Duncan Campbell Scott - The Apparition

Gentle angel with your mantle,
All of tender green,
I was yearning for a vision
Of the life unseen.

When you hovered in the sunset,
Just as rain was done;
Where the dropping from the poplars
Seemed like rain begun.

There you gathered forming slowly
Rounding into view:
All your vesture glowed like verdure
When the sap is new.

Then you mutely gave your warning
And I felt the stress
Of its passion and its presage
And its utterness.

There you swayed one tranquil moment,
Mystically fair,
Then you were not of the sunset,
Were not in the air.

Duncan Campbell Scott

http://www.poemhunter.com/poem/the-apparition/