The song "Deja vu" is about the feeling of nostalgia and repetition in life. The lyrics talk about watching the sunrise and sunset, feeling like they've experienced it all before. The singer expresses their deep admiration for someone, even to the point of wanting to protect them from people who get in the way of their special moments. The chorus reflects on feeling insignificant and being tossed around, as if under the influence of alcohol. The singer regrets not remembering important things and apologizes for their actions. The bridge discusses the regret of not being able to call someone and spend more time with them. The singer yearns for a deeper connection and reflects on missed opportunities. Overall, the song portrays a sense of longing, regret, and a desire for deeper connections in life. It reflects the universal human experience of feeling like life is repeating itself.