With a sweet emotion;
Nothing in the world is single;
All things by a law divine
In one spirit meet and mingle.
Why not I with thine?—
2.
See the mountains kiss high Heaven
And the waves clasp one another;
No sister-flower would be forgiven
If it disdained its brother;
And the sunlight clasps the earth
And the moonbeams kiss the sea:
What is all this sweet work worth
If thou kiss not me?
And now is the clinching argument. The idea of ‘sweet work’ is appealing, designed to be persuasive to the woman. 
 Note that the pace changes from the rapid movement of the two previous lines to the slow, long vowels in ‘sweet, work worth’, the last two being  assonant . The three words are quite difficult to say if spoken aloud, creating a feeling of heavy sadness.
Loves Philosophy