The narrator reflects on the painful experience of forgetting a loved one's unique voice. In trying to recall the comforting words “Don't worry,” he realizes he can only picture an indistinct, generic voice rather than the specific sound he once knew. This symbolizes a deeper emotional loss, as the essence of the connection fades with memory.
This loss prompts a contemplation on the importance of preserving memories. The narrator suggests that just as photographs capture faces, gramophone records should capture voices to hold onto those cherished sounds. The idea conveys the fragility of memory and the inevitable erosion of once-vivid relationships over time.