Edith Nesbit - Faith

A wall
Gray and tall,
And a sky of gray,
And a twilight cold;
And that is all
That my eyes behold.
But I know that unseen,
Beyond the wall,
On a lawn of green
White blossoms fall
In the waning light;
And beyond the lawn
Curtains are drawn
From windows bright.
And within she moves with her gracious hands
And the heart that loves and that understands,
Waiting to succour poor souls in need,
And to bind with her blessing the hearts that bleed.

I know it all, though I cannot see;
But the tired-out tramp,
Dirty and ill,
In the evening's damp,
In the Spring's clean chill,
Knows not that there
Is the heart to care
For such as I and for such as he.
He slouches along, and sees alone
The gray of the sky and the gray of the stone.

Lord, when my eyes see nothing but grey
In all Thy world that is now so green,
I will bethink me of this spring day
And the house of welcome, known yet unseen;
The wall that conceals
And the faith that reveals.

Edith Nesbit

http://www.poemhunter.com/poem/faith-159/