Notice the special entries named . and ... Every directory has those entries. The . is a link to the current directory, and .. is a link to the parent directory (the directory that contains this directory). So, for instance, if you type cd .., Linux opens the directory at i-number 264.
"So," you might ask, "if the root directory has i-number 264, what's that entry named root?" The answer is that the directory named root, here with i-number 4261, is the home directory for the user named root, the superuser. Its absolute pathname is /home/root -- very different than the root directory, with absolute pathname /.
Note that our current directory is named home, but you can't tell that from looking at the directory entries. Where is its name? A directory's name is kept in its parent directory! But all directories have a link named ., which is a handy way to refer to the current directory -- from the find program, for instance.