"Reason" by Jung Il-young, a central ballad from Autumn in My Heart , tells a story of tragic, forbidden love, reflecting the drama's themes of fate, separation, and deep longing. The lyrics express the immense pain of a love that cannot exist, highlighting the fear of a world without the beloved and the struggle against a forced separation.
The song's use of English lyrics has also contributed to its global appeal, allowing listeners who may not be fluent in Korean to connect with the emotions and themes presented. The melody, with its soaring chorus and haunting instrumentation, has become iconic, evoking a strong emotional response from listeners.
To fully grasp the emotional weight of the lyrics, it is essential to understand the drama's tragic plot. Autumn in My Heart tells the devastating story of two young girls who were switched at birth. Years later, after an accident reveals the truth, the families are forced to swap their daughters back to their biological parents, tearing Jun-seo and Eun-seo apart. They are torn from the only home and family they have ever known, leading to a sense of profound loss.