Obviously, the Threefold Track in the Perfect Teaching represents the One Buddha-vehicle, and demonstrates the state of Buddhahood, which cannot be perceived by the practitioner of the other three teachings (Tripiṭaka, Common, and Separate). In view of the fact that they have not understood the Threefold Track of the Perfect Teaching, Chih-i points out that these Three Tracks become three hindrances. Why is this? If one has not severed the delusion of lacking sufficient knowledge of saving beings within and beyond the three realms, this means that one is not yet able to grasp immeasurable dharma-doors, which hinders one’s perception of the tathāgatagarbha. If one has not severed the delusions of false views and wrong attitudes, this means one is not able to fully perceive the nature of emptiness, which hinders one’s perception of the Supreme Meaning of Emptiness. If one has not severed fundamental ignorance, this indicates that one is not yet able to realize the True Reality that lies in all dharmas and prevents the supreme principle of the True Reality from being revealed. (Vol. 2, Page 246)