The Third Step To Understanding House Rulers
Memorize the domain of each House. Know each house as well as you can. After this, House Rulers will be, relatively, easy. Without a fluid understanding of what each house rules, you will struggles. Like anything else in Astrology, doing is learning. Try to do charts and ask people, if you are right. As you know, there are many levels to any chart. House Rulers is a study of House to House interaction, so if something does not seem right,there will be other factors to explain it, beyond House Rulers. However, with the correct time, House Rulers are, rarely, wrong, in my experience.