Love's Young Dream is a phrase used to describe the early stages of romantic love between two young people. The term is often used in literature, music, films, TV, and other media. Origin. The phrase comes from lyrics written by Thomas Moore to accompany a series of Irish tunes arranged for piano by John Stevenson, forming the popular collection titled "Irish Melodies", published between 1808 and 1835. His poem "Love's Young Dream" celebrates the bittersweet memories of youthful love, and contains the lines, Examples. Examples of the phrase's use include: