The lyrics of Dewa's song Risalah Hati evoke a sense of an individual's emotional struggle to find love and acceptance. The first two lines of the verse talk about how life without love is like a night sky without stars, and love without reciprocation is like heat without rain. The lines hint at how crucial love is for an individual, and how emptiness and longing can fill an individual's heart in the absence of love. The next line 'Jiwaku berbisik lirih, kuharus memilikimu' suggests how an individual's soul whispers and longs for love, and how it feels necessary to possess it.

The chorus of the song describes the protagonist's willingness to make the person fall in love with them, even if it takes time, and how love can evolve through habituation. The following lines 'Simpan mawar yang kuberi, mungkin wanginya mengilhami' imply that the protagonist is holding on to the hope that the person will recognize their worth, even though the person may not see it at first. The final lines 'Sebelum kau ludahi aku, Sebelum kau robek hatiku' are a plea from the protagonist not to break their heart, indicating the rawness and vulnerability of the protagonist's emotions.

Overall, the song Risalah Hati refers to the universal emotions of loneliness, the need for love and companionship, and the pain of unrequited love. The lyrics speak to the heart and soul of listeners, making it one of the most beloved and memorable Indonesian songs of all time.