Group 1 - The article reflects on the significance of personal items collected over time, emphasizing their sentimental value rather than monetary worth [1][2] - The first item mentioned is a stone collected in 2007 from the Gobi Desert in Qinghai, symbolizing memories of environmental volunteer work and the beauty of nature [1] - Another item is a piece of pine bark from the Greater Khingan Mountains, collected in 2017, which evokes memories of the surrounding forest and literary inspirations [2] Group 2 - The article includes wooden duck figurines gifted by a classmate, representing a personal connection and appreciation for creativity [2] - A child's curiosity about the collection highlights the theme of storytelling associated with each item, reinforcing the idea that value is derived from experiences rather than price [2][3]