Hear the lark harken to the barking of the dark fox gone to ground.
See the splashing of the kingfisher flashing to the water.
And a river of green is sliding unseen beneath the trees
Laughing as it passes through the endless summer
Making for the sea.
Yes, these are great lines, but thats not a metaphor.
met·a·phor [ méttə fàwr ] (plural met·a·phors [ mèttə máwrfə sz ])
1. implicit comparison: the use to describe somebody or something of a word or phrase that is not meant literally but by means of a vivid comparison expresses something about him, her, or it, e.g. saying that somebody is a snake
2. figurative language: all language that involves figures of speech or symbolism and does not literally represent real things
3. symbol: one thing used or considered to represent another
"...river of green is sliding unseen beneath the trees
Laughing as it passes through the endless summer..."
This seems to use some symbolism to me....a river cannot "slide," nor can it "laugh." And unless you live in the South Pacific, the summer is not "endless."
Or am I a total idiot that minored in English literature and hasn't a clue?