Answer:
The speaker in this line conveys a sense of regret and loss, emphasizing the idea that unrealized potential and unexpressed ideas can be more disheartening than the destruction of existing works. By suggesting that incomplete or unwritten libraries are more disturbing than book ashes, the speaker highlights the tragedy of unfulfilled creativity and untold stories.
This line contributes to the larger message of the poem by drawing attention to the significance of creation and the power of imagination. It underlines the importance of not only cherishing existing literature but also recognizing the value of potential works that may never come to fruition. The line prompts readers to consider the untapped depths of human creativity and emphasizes the need to encourage and support the expression of ideas before they become lost and forgotten. Furthermore, it serves as a reminder of the imperative role literature plays in enriching our lives and the profound impact it can have on society.