Analyze the development of a central idea over the course of the text, including how it is shaped and refined by specific details.
Chavez mentions the Ramirez family (paragraphs 36–37) and Jimmy Caudillo
(paragraph 39). How do the stories of these people add to or refine the central idea
of the speech?

The development of a central idea over the course of the text,  including how it is shaped and refined by specific details is explained briefly in the below explanation.

Explanation:

Cesar Chavez applied the phrase radical at the commencement of his address on the page of the beginning. The term radical depicts extreme, significant, or severe. This delivers so much of the speech more dangerous, severe, and serious and addresses it to appear more significant. Main concepts are also found in the ending paragraph of a paragraph

the swan might be a metaphor for our soul, which is ancient and timeless. the speaker wants to know where it's going and what it wants, what's the purpose in life. he asks our soul to follow him in knowing that god is us and the answer to the question "who am i" that was written on the wind of god's whim to know himself that blew over his being in the beginning of creation. and to connect to god consciously on the path to knowing him is the joy of loving him, like a bee that will grow and end our sorrows by ending desire. in that connection there is no doubt about god and existing forever.