Explain the following line Our sweetest songs are those that tell of saddest thought Our sweetest songs are those that tell of saddest thought is a famous line from P B Shelley s - poem To a Skylark By this line Shelley means that the most beautiful moving songs or poems humans create often come from sadness When Shelley says sweetest songs he is talking about the art like music poetry that touches us deeply These are the works that feel meaningful or stay with us long after we hear them He argues that sadness adds depth to art Happiness is simple and light but sadness carries weight like heartbreak loss or longing When artists pour these heavy feelings into their work it becomes more powerful For example a sad song about losing someone might make listeners cry but it also makes them feel understood In the poem Shelley contrasts