The phrase alludes to messengers and heralds delivering significant, positive information. It highlights the value and appreciation for those who communicate encouraging or beneficial tidings. For example, a town crier announcing the end of a war or a doctor sharing positive test results could exemplify this concept.
The underlying significance resides in the relief, hope, or opportunity that such news provides. Throughout history, the delivery of vital information, especially during times of crisis or uncertainty, held immense societal value. The individuals responsible for conveying these messages were often regarded with respect and gratitude due to the impact of their announcements.