I went looking for an online version of this poem, and there are several floating around, but all of them are full of punctuation mistakes. So here's Plath's "The Moon and the Yew Tree" with all the commas and periods at the ends of lines fixed to correspond to the version of the poem in the original book.
The Moon and the Yew Tree
Sylvia Plath, Ariel
This is the light of the mind, cold and planetary.
The trees of the mind are black. The light is blue.
The grasses unload their griefs on my feet as if I were God,
Prickling my ankles and murmuring of their humility.
Fumy, spiritous mists inhabit this place
Separated from my house by a row of headstones.
I simply cannot see where there is to get to.
The moon is no door. It is a face in its own right,
White as a knuckle and terribly upset.
It drags the sea after it like a dark crime; it is quiet
With the O-gape of complete despair. I live here.
Twice on Sunday, the bells startle the sky —
Eight great tongues affirming the Resurrection
At the end, they soberly bong out their names.
The yew tree points up. It has a Gothic shape.
The eyes lift after it and find the moon.
The moon is my mother. She is not sweet like Mary.
Her blue garments unloose small bats and owls.
How I would like to believe in tenderness –
The face of the effigy, gentled by candles,
Bending, on me in particular, its mild eyes.
I have fallen a long way. Clouds are flowering
Blue and mystical over the face of the stars.
Inside the church, the saints will all be blue,
Floating on their delicate feet over the cold pews,
Their hands and faces stiff with holiness.
The moon sees nothing of this. She is bald and wild.
And the message of the yew tree is blackness – blackness and silence.