Heize's song Doobling, also known as Knock Sir, is about the small moments in life that bring joy and happiness despite the struggles and challenges we face. The lyrics describe the artist staying up late to draw circles and scribbles with a pen and paper, feeling content in the peacefulness of the moment. Though the things around her are messy and overflowing, she finds comfort in the simple act of creating and expressing herself. The chorus repeats the line "This is not a love song" to emphasize that the song is not about romantic love, but rather the love and appreciation for the small things in life. The second verse lists the names of loved ones and imagines covering them with umbrellas to protect them from the rain, symbolizing the artist's desire to care for and support those around her. Overall, Doobling encourages listeners to find joy in the present moment and appreciate the people and experiences that bring happiness to their lives.
