Abstract: Different from the earth and nature,Hannah Arendt’s concept of the “world” belongs to the broader culture created by human beings and composed of artifacts (from buildings,tools of production/living to various institutions,literature,and art,etc.).At the same time,the “world” is not the world of a single person,but the world of all people,a public space in which plural people interact and dialogue with each other,presenting themselves to each other.The reality of the “world” and the reality of the self can only be gained by sharing the experience of being in the world with others.The “world” is independent from the natural cycle of birth and death,its ability to connect past,present,and future,and its ability to give people a stable sense of reality and identity,is greatly facilitated by its durability,which provides people with a guarantee against the futility (transience) of their lives.Finally,both the world’s durability and man’s immortality are secular,which fundamentally distinguishes it from eternity in the religious sense (eternal,eternalness).