The Gregory Brothers's song "Boulevard of Broken Dreams" is actually a cover of the original song by American rock band Green Day. The lyrics describe a sense of loneliness and alienation, with the protagonist walking a lonely road that they have always known, unsure of where it leads. The street they walk on is referred to as the "Boulevard of broken dreams," symbolizing the disappointments and struggles in life. The city is portrayed as asleep, while the protagonist is the only one awake, emphasizing their isolation. They express feelings of being alone in their thoughts and experiences. The repetition of "I walk alone" throughout the song underscores their sense of detachment from others. The lyrics also mention the shadow being the only companion and the shallow heart being the only thing beating. These lines highlight the emotional emptiness and longing for connection, expressing a desire for someone to find and understand them. However, until that happens, they continue to walk alone. Overall, "Boulevard of Broken Dreams" explores themes of solitude, introspection, and the universal human yearning for connection and understanding.