Final answer:
The letter is likened to an 'unhatched egg' as a metaphor for untapped potential, signaling a dormant possibility for growth and development akin to the life awaiting within an egg.
Step-by-step explanation:
The letter is compared to an 'unhatched egg' to symbolize the concept of untapped potential. This metaphor implies that just as an unhatched egg contains the potential for life that has not yet been realized, the subject at hand also holds potential that is still dormant and awaiting development or expression. This comparison does not so much denote fragility or immaturity, but rather the possibility of growth and maturity that has yet to occur, similar to an egg's content before it hatches.
The letter is compared to an "unhatched egg" to represent untapped potential. Just like an unhatched egg has the potential to become a fully grown bird, a letter has the potential to convey important information or ideas. By comparing the letter to an unhatched egg, the author is emphasizing the potential for growth and development.