What it means is we have to understand what it is as something which has a history, has certain things that keep it together, but it's a process, it's fluid, it's forever changing.
这意味着，我们需要将它理解为 是一种拥有过往的事物， 是某些东西的集合， 不过它是一个过程， 流动着的，始终变化着的。