Although Heine's early lyric poems have a strong romantic color, they are different from ordinary romantic poets and are not used to creating dreams, so that people are immersed in them and forget the reality. Instead, they use the technique of "romantic irony" to disillusion their dreams, face reality squarely, and never deliberately cover up the ugliness of reality with the beauty of poetry. Poetry contains criticism of society.
Although Heine's lyric poetry mainly praises love, it has the content of the new era, which embodies the praise of the French bourgeois revolution, the contempt for the restoration of feudalism and its main pillar churches and nobles, and the disgust for the bourgeois habits and morality of the emerging bourgeoisie. In the earliest part of Song Collection, The Trouble of Teenagers and Two Grenadiers are both poems with distinct political colors.