The song describes the joy of finally being with someone the speaker has long imagined and waited for. At first, she recalls loneliness and sadness; now, closeness and affection make her feel free and hopeful. The repeated wish to be together tonight emphasizes how meaningful this moment feels after such a long wait.
The comparison to “a movie scene” or “the sweetest dream” suggests that the romance once seemed almost unreal, but being together feels even better than expected. An “empty heart” represents loneliness, while being held in someone’s embrace offers comfort and belonging. “Take my breath away” is an idiom meaning that the lover’s words or presence are deeply exciting or moving, not literally that she cannot breathe.
The speaker presents this love as a powerful answer to past unhappiness, but the lyrics focus on her feelings in the moment rather than on what will happen later. Her wish to “stay in this forever” may express lasting commitment, or simply the intensity of a wonderful night. The song’s confident celebration leaves that future open.