Short Answer 
The passage discusses the significance of the images on a Grecian urn, illustrating how art preserves moments in time, contrasting its permanence with the transient nature of life. John Keats emphasizes that this unchanging quality of art symbolizes eternal beauty and truth, highlighting its lasting impact compared to fleeting human experiences.
Identify the Topic
The topic of the passage centers around the images depicted on a work of art, specifically focusing on a Grecian urn. This urn serves as a representation of how art captures moments, preserving them in a time capsule. By analyzing the figures and scenes, we understand the artistic intention behind the imagery, signifying a broader commentary on art’s role in society.
Understand the Statement about the Topic
The passage emphasizes that the images on the urn never change. This permanence highlights the concept that while life is transient and ever-morphing, the art depicted remains static and untouched by the flow of time. Thus, these eternal images symbolize moments of beauty and truth that live on beyond their physical representation.
Grasp the Expressed Theme
John Keats conveys that art is eternal and an unchanging source of truth. This theme reflects on how the unalterable nature of the urn’s imagery serves as a contrast to the fleeting experiences of human life. By exploring this theme, Keats successfully illustrates the enduring essence of art, which preserves both beauty and truth through the ages, unlike the temporary goals and desires of humanity.