When you take the first verse, and hum it you can begin to see how it is a stanza. Then, if you take a look at all of the verses, you begin to see how it is nothing more than a poem with four stanzas. Each stanza has eight lines and there is definitely an apparent rhyme pattern.
Herein, is there a difference between a stanza and a verse?
A verse is one line in the poem. A stanza is a group of verses. You can think of stanzas as being the equivalent of paragraphs, and verses being sentences. Stanzas are simply a grouping of lines within the poem, much like a paragraph in prose.
What is the difference between a verse and a poem?
Sometimes they're synonyms, other times they aren't. Verse typically is defined as writing arranged with a metrical rhythm, typically having a rhyme--while it usually has the context of being a line or two of poetry, and in other contexts a verse of a song lyric being equivalent to a stanza in poetry.
What is a verse in a poem?
In the countable sense, a verse is formally a single metrical line in a poetic composition. However, verse has come to represent any division or grouping of words in a poetic composition, with groupings traditionally having been referred to as stanzas.