The idea is that you can refer to the collection of bytes that works out to "hello world\n" by the name 'foop' and I can refer to it as 'goop', and we really don't know that those two different names are the same file (unless we do some detective work (using 'ls')). If you type "ls -lL foop", you get the information about the file; the name remains the same because that is how you refer to it.