From the point of view of Mahayana sutras of definite meaning, all sentient beings have possessed the perfect awareness. But due to a moment of inattention, they have lost the ground luminosity. What is the original face of the mind? What are the qualities that the mind possesses? Why do beings give rise to illusions? What is the exact meaning of 'deluded thoughts'? What is the relation between 'deluded thoughts' and 'awakening'? How are deluded thoughts formed and what structures or processes are derived from them? What are the impacts of the formed deluded thoughts? How do the structures derived from deluded thoughts imprison beings? Han-Shan Te-Ching (1564-1623) was one of the four most prominent monks in the late Ming Dynasty. This section is based on his written works to analyze his profound explanation on the discussion of 'From ”Ground Luminosity” to ”Illusions”.