The song's lyrics, written by Kenzie, depict a narrative of heartbreak and longing. The opening lines ("¨μ—œ ê¸°μ œëŠ" / "I'm fine, thank you" in English) convey a sense of detachment and indifference, but as the song progresses, Taeyeon's vocals and the lyrics reveal a deeper emotional pain. The chorus, "°¡ì§ˆì•œëŠ" / "I thought we were fine," highlights the speaker's shock and disappointment at the end of a relationship.

The lyrics also touch on the theme of self-reflection, as Taeyeon acknowledges her own flaws and vulnerabilities. In the bridge, she sings, "그낰ëŠ" / "I was blind." This line suggests that the speaker has gained new insight and perspective, recognizing her own mistakes and limitations.

As the song progresses, the lyrics shift from lamenting the past to a more introspective and empowering tone. Taeyeon sings, "μ–€ìž¨í•˜ê¸° / "I'll erase you" and "°³ì‚°ëŠ" / "I'll move on." These lines demonstrate the speaker's growing self-awareness and determination to move forward.

The lyrics of "Fine" by Taeyeon offer a nuanced exploration of heartbreak, self-reflection, and empowerment. Through her powerful vocals and the song's catchy melody, Taeyeon conveys the complexity of emotions that follow a breakup. The song's themes of introspection, growth, and resilience resonate with listeners, making "Fine" a memorable and impactful solo single in Taeyeon's discography.