The songs of ancient history were forgotten, and layer upon layer of new feelings arose.

This couplet beautifully suggests how the stories and songs of our ancient, perhaps forgotten, history eventually fade from our collective memory. As time progresses, the narratives of the past tend to get overlooked. Simultaneously, it highlights a natural evolution where new feelings, perspectives, and ideas begin to emerge and accumulate. It's like different layers of new emotions building up, one upon another. This imagery portrays a dynamic process where old understandings give way to fresh sentiments and viewpoints, creating a continuous formation of new emotional and intellectual landscapes as life unfolds.