Accident In Art

What painter has not with a careless smutch
Accomplished his despair?--one touch revealing
All he had put of life, thought, vigor, feeling,
Into the canvas that without that touch
Showed of his love and labor just so much
Raw pigment, scarce a scrap of soul concealing!
What poet has not found his spirit kneeling
A-sudden at the sound of such or such
Strange verses staring from his manuscript,
Written he knows not how, but which will sound
Like trumpets down the years? So Accident
Itself unmasks the likeness of Intent,
And ever in blind Chance's darkest crypt
The shrine-lamp of God's purposing is found.