The only way to understand the charts is to read the resources I give out and see how they all relate to one another, and to know all the bits of relevant socionics, alchemy, and astrology required to understand how there exist comparisons.
Of course, unless one is already well studied that takes time and effort and apparently many of the people who are opposed to this system as it is built would rather make denials followed by weak refutations than to look at the resources involved to see if there is indeed a comparison.