What is the 6th dimension?

yetar

In this link:
http://www.tenthdimension.com/flash2.php

The ten dimensions are desribed.
I understood that the 5th dimension is:
Given an initial condition(a certain universe state), it is a shape in the 5th dimension which contains all the possible states in the 3rd dimension that are reachable from the initial condition.
However, I didnt understand what does the 6th dimension adds to the 5th dimension.

I would appreciate your help on this matter.
Thanks in advance.