Understanding that the five aggregates are suffering, empty, impermanent, and non-self is not very difficult; the problem is that the views are deeply rooted and hard to change. Understanding some Buddhist teachings is not very difficult; the difficulty lies in changing one's views, in truly realizing these dharmas. Everyone knows that the physical body is impermanent and cannot possibly be the self, but it is of no use—the view of the body cannot be eradicated—because the manas's age-old views are too deeply entrenched, and it simply cannot turn this corner. Therefore, continuous repeated cultivation and permeation are needed to change His views.
Observe thoroughly the phenomena of the physical body's arising, ceasing, change, and impermanence, knowing this matter clearly and distinctly; then condense this matter into a single point, place it deep in the mind, and hand it over to the manas. Whether walking, standing, sitting, or lying down, keep this matter hanging in the mind; even when sitting in meditation, keep this matter hanging there—hanging high and deep. If the observation is not comprehensive or thorough, then observe and contemplate again. One day, the dull-facultied manas will suddenly have a breakthrough and suddenly understand: the physical body is truly not the self—and thus the view of the body is eradicated.
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