Siegfried Sassoon - Miracles

I dreamt I saw a huge grey boat in silence steaming
Down a canal; it drew the dizzy landscape after;
The solemn world was sucked along with it—a streaming
Land-slide of loveliness. O, but I rocked with laughter,
Staring, and clinging to my tree-top. For a lake
Of gleaming peace swept on behind. (I mustn’t wake.)

And then great clouds gathered and burst in spumes of green
That plunged into the water; and the sun came out
On glittering islands thronged with orchards scarlet-bloomed;
And rosy-plumed flamingoes flashed across the scene...
O, but the beauty of their freedom made me shout...
And when I woke I wondered where on earth I’d been.

Siegfried Sassoon

http://www.poemhunter.com/poem/miracles-2/