Who is the theme image of The Melting Pot, and what feelings does the poet express?

The poet compares himself to "coal in the furnace" by imitation, and compares his motherland to "my beloved" and "girl" by personification. The whole poem is based on this group of core images. The image of "coal in the furnace" has rich aesthetic implications: first, the burning of "coal in the furnace" symbolizes the poet's passion for sacrifice for the motherland; Secondly, the "heart like fire" under the black appearance of "coal in the furnace" symbolizes the humble status and great personality of the working people. "coal in the furnace" refers to both the "ego" and the "big ego"-the working people endorsed by the poet; Thirdly, the predecessor of "coal in the furnace" was originally a useful pillar. After being buried alive for many years, it finally "saw the light of day", symbolizing that the poet wanted to do something because he didn't want to live a mediocre life, and also symbolizing that the huge energy hidden among the working people to transform the world would be released. The image of "girl" implies that the poet's love for the motherland is as passionate as love, while the word "teenager" implies that the motherland was full of vitality in the May 4th Revolution. Guo Moruo said in Ten Years of Creation: "In my mind, China after the May 4th Movement is like a very young and enterprising girl. She is like my lover ... "Coal in the Furnace is a love song I gave her. This passage clearly illustrates the significance and role of metaphor in this poem. I hope I can help you, but in fact, I still have to tell my parents more about many things.