How Does the Mark of Arising and Ceasing of the Six Consciousnesses Appear

From the perspective of appearances, the first six consciousnesses constantly arise, cease, and change. Even under normal daytime conditions, they continually arise from one dharma and cease on another, then cease from that dharma and arise on yet another. The essential nature of the six consciousnesses is just this constant arising and ceasing, fundamentally unstable. Why do the six consciousnesses arise and cease on various dharmas? It is caused by the fluctuation of the manas's thinking, the constant shifting of the manas's grasping tendency, and the manas's lack of stable abiding. If the manas is subdued and the mind is not scattered, the manas's thoughts will no longer jump about ceaselessly; it will become concentrated on one or a few dharmas, and the six consciousnesses will likewise no longer be scattered—they will not arise everywhere to perceive and discern, nor jump from one thing to another.