Answer:
This poem is an example of the romantic period of American literature.
Step-by-step explanation:
The poem shown in the question above is called "Thanatopsis" and was written by William Bryant. This poem of how American literature presented itself in the period known as the Romantic Period.
Poetry during this romantic period had a humanitarian, sentimental character and evidenced nature as something alive and offering an escapism for the speaker to express his feelings, fears and emotions, without being rational. "Thanatopsis" has these characteristics, especially when it shows the speaker's admiration for nature, to the point of joining it to form a single organism.