The song "4AM" by Eric Nam is about the feeling of loneliness and longing that one experiences late at night. The lyrics express the heaviness and coldness of the night, as well as the difficulty of taking a single step forward. The empty streets create a sense of loneliness, and the protagonist finds solace in repeating the name of their loved one. The lyrics also mention looking up at the sky and seeing it pale and empty, symbolizing the lack of answers or communication from the person they miss. Despite the longing and danger they feel, they continue to wait for their loved one, comparing themselves to the moon hanging alone in the sky. The song highlights the emotional turmoil of being alone and unable to sleep, with regrets and tears filling the night. The protagonist tries to shut their eyes and ignore the pain, but the thoughts of their loved one continue to consume them, making it hard to breathe. As morning approaches, the protagonist expects to feel numb, but they know that the cycle of loneliness and longing will repeat again. They wonder how much time has to pass for them to fall into a deep sleep or to let go of their loved one. They ask for someone to save them from themselves. The lyrics emphasize the persistence of the emotions and the constant longing for the loved one who is not with them at 4AM. The song explores the feelings of vulnerability and the desire for companionship in the late hours of the night. Overall, "4AM" is a poignant and relatable song that captures the emotional struggles of longing and loneliness that many people experience during solitary moments late at night.