The song "Big Big World" by Emilia tells the story of a girl who feels alone and vulnerable after her loved one leaves her. The lyrics express her emotions and reflect her realization about the end of her relationship. The song begins by highlighting the girl's self-awareness of her size in comparison to the world, emphasizing her feelings of insignificance and how her partner's departure does not seem like a big thing. However, she admits that she will miss them greatly. The mention of the first falling leaf symbolizes the changing seasons and signifies the end of something beautiful. The yellow color represents warmth and happiness, contrasting with the girl's current state of feeling cold and empty inside. The rain mentioned in the lyrics represents the girl's tears and the sadness she experiences. She questions why her relationship had to end, expressing her confusion and disappointment. The mention of having the person's arms around her, creating warmth like fire, implies that their presence was comforting and made her feel safe. However, when she opens her eyes, she realizes that the person is no longer there, intensifying her feeling of loss. Overall, the song portrays the girl's emotional journey of acknowledging her vulnerability, questioning the reasons for the relationship's end, and expressing her immense sadness and longing for her partner.