The song "Heaven (Acoustic)" by Niall Horan explores the intense feelings of love and admiration the speaker has for someone, suggesting that this connection is so extraordinary that even heaven cannot compare. The lyrics depict the person being described as ethereal and captivating, with their presence causing a transformative effect on the speaker. The lines "You're made of something new" and "Beyond infatuation, how I obsessively adore you" highlight the speaker's fascination and adoration for this individual.

The chorus, "God only knows where this could go / And even if our love starts to grow out of control / And you and me go up in flames / Heaven won't be the same," conveys a sense of uncertainty and excitement about the future of their relationship. It suggests that the speaker is willing to take a risk and let the love they share lead them into unknown territory. The phrase "go up in flames" implies a passionate and potentially volatile romantic connection.

The pre-chorus expresses a profound belief in the power of the connection, as the speaker states, "I believe, I believe I could die in your kiss." This line emphasizes the intensity of the emotions experienced when being with this person. It suggests that the speaker finds ultimate fulfillment and happiness in their presence.

Overall, "Heaven (Acoustic)" reflects the overwhelming emotions and the willingness to embrace the unknown that can come with falling deeply in love with someone. It conveys a sense of awe and reverence for the individual, highlighting the transformative nature of their connection.