While the third house deals with honing our skills, the ninth house reaches even higher, to the level of mastery. When we reach the ninth house, we are ready to expand beyond what we are already know. Here we are going to college or medical school or law school.  Or seeing the world to experience foreign cultures.  We are expanding way beyond basic reading, writing, and arithmatic. 

As our skills grow, we begin to understand ourselves on a more philosophical level.  We connect to our maker through our religious beliefs.  We meditate and learn about Zen.  We go beyond our immediate zone.  And then, when we have seen and learned enough, we can begin to teach others.