North Node in the ninth house brings the conflict between idealistic thoughts and simple truth, between real-world knowledge and sacred values, between mental doubts and religious beliefs. These people need to get a real education and find real meaning on several different ideas. They need to attain personal spiritual liberation through study, travel, and self reflection. They need to develop confidence in their beliefs and rise above simple truths to higher knowledge and moral values.
You must learn the difference between ideas and true knowledge. Be reflective and aware of how you interact with other. This placement can lead to shallowness if you're not careful.