* To create suspense and anticipation: By suggesting that the speaker will soon be unable to hear the voice, the author piques the reader's curiosity. We are left wondering what will happen to the speaker and the person they are listening to.
* To hint at a potential loss or separation: The phrase implies that the speaker will be separated from the source of the voice, either physically or through death.
* To emphasize the importance of the voice: By highlighting the loss of the voice, the author emphasizes its significance to the speaker. This could be due to the voice being a source of comfort, guidance, or simply a connection that is cherished.
Without further context, it's difficult to pinpoint the exact purpose of the foreshadowing. However, the phrase definitely creates a sense of uncertainty and suggests a significant event is about to occur.