Read this line from "Empire State Building." I am ten million bricks of unshakable faith.

What is the best interpretation of the figurative language in this line?

Taking into account that alliteration can be defined as the repetition of initial consonant sounds in successive words, and assonance can be defined as a literary device that uses similar sounds in close syllables or words, the excerpt that uses both alliteration and assonance within this list is:

Though two, close-keeping, are lass and lad,—