Walter Benjamin employs the concept of the 'passage' to delve into the intricate relationship between architecture, urban space, and identity in 19th-century Paris. The passage, as a space between buildings, symbolizes the transition from the private to the public domain, reflecting the evolving social fabric of the city. Benjamin sees the passage as a site where modernity's alienation and the individual's search for identity manifest. The iron and glass structures of the passage, with their commercial and cultural significance, embody the industrial revolution's impact on urban life. This space, characterized by its anonymity and the flow of diverse individuals, becomes a metaphor for the construction of identity in a rapidly changing society. Benjamin's analysis highlights how the passage, as a space of encounter and exchange, contributes to the formation of modern subjectivity, reflecting the complex interplay between architecture, urban space, and individual identity in the context of 19th-century Paris.