Edna St. Vincent Millay

This is the final stanza in the long poem Renascence, which is a beautiful piece of writing.

The world stands out on either side

No wider than the heart is wide;

Above the world is stretched the sky,—

No higher than the soul is high.

The heart can push the sea and land

Farther away on either hand;

The soul can split the sky in two,

And let the face of God shine through.

But East and West will pinch the heart

That can not keep them pushed apart;

And he whose soul is flat—the sky

Will cave in on him by and by.