In the poem ““Ode on a Grecian Urn”, John Keats analyzes the theme of the passage of time by comparing the theme with the art depicted on the urn Greek. Time is defined by what it is, what time is in the present, how it flows from one moment to the next and how it alters the conditions of the environment and how it alters the human body. Time is an omnipresent element, and although it cannot be physically seen, held, or heard, its influence is certainly noticed by humans today. Time plays many roles and serves many purposes, it constantly advances affecting all that passes with its influence, yet it is mostly hidden in the world of art. It is powerful, but hidden, influential, but mysterious. Time is an element that wears more than one mask as it advances from the present to the future. It acts as an organizer, has an effect on objects and people, and ultimately serves as a reminder to humans about their lives and helps define their lives so that people can feel satisfied with their lives when they leave this world , or they might regret it