To him who in the love of Nature holds
Communion with her visible forms, she speaks
A various language; for his gayer hours
She has a voice of gladness, and a smile
And eloquence of beauty, and she glides
Into his darker musings, with a mild
And healing sympathy, that steals away
Their sharpness, ere he is aware. When thoughts
Of the last bitter hour come like a blight
Over thy spirit, and sad images
Of the stern agony, and shroud, and pall,
And breathless darkness, and the narrow house,
Make thee to shudder, and grow sick at heart;—
Go forth, under the open sky, and list
To Nature’s teachings, while from all around—
Earth and her waters, and the depths of air—
Comes a still voice—
"Thanatopsis" is a declamatory piece par excellence. It is full of Wordsworthian and Emersonian homilies, but it is interesting because it is a fine poem for reciting aloud. What is most interesting is Bryant's allowance for the fact that the reader, if reading aloud, has to take breaths and can only do so appropriately at certain places, not necessarily at the ends of the ends of the iambic-pentameter lines. In the fragment of the poem quoted above, it seems apparent that the first breath is allowed for at the end of these words:
To him who in the love of nature holds
Communion with her visible forms, (deep breath) she speaks
A various language;
The last three words end with a semicolon, suggesting that here is an invitation for the reader to take another deep breath and then go on with
for his gayer hours
She has a voice of gladness, and a smile
And eloquence of beauty,
Here the comma lets the reader not only take in another breath but to open his or her mouth in preparation for saying the word "and" in the following:
and she glides
Into his darker musings, with a mild
And healing sympathy,
Another comma tells the reader to take another breath, and the word "that" is a perfect occasion because the reader has to open his mouth to say it.
that steals away
Their sharpness, ere he is aware.
Now Bryant presents us with a generous period, a full stop, in which to take a really deep breath and get ready for the next burst of eloquence. And so on.
You cannot, especially as a young person, appreciate this old warhorse of a poem without having a little fun with it. And the way to have fun with it is to read it aloud, with expression, maybe a little melodramatically, and becoming aware of how adroitly Bryant has allowed for the fact that we humans have to breathe from time to time. It also gives us a better awareness and understanding of the purpose of commas, semicolons, and periods. We should not only read Shakespeare and poetry aloud, but we should read our own compositions aloud and see how they sound as well as what they mean.
When composers write for wind instruments or for vocalists, they have to allow for the fact that breathing is of the utmost importance. Good examples are to be found in Mozart's beautiful concertos for French Horn (Kochel 412, 417, 447, 495) and in the famous chorus to the fourth movement of Beethoven's 9th Symphony.