The Functioning of Consciousness Is Affected by the Brain

Whenever the eighth consciousness manifests dharmas, the manas necessarily relies on the eighth consciousness to perceive and to discern them. Although the manas itself has no problem, if the brain has a problem, the manas cannot normally direct the movement of the whole body through the brain's nervous system, and the mind consciousness is also affected. Only after the brain becomes normal can the thinking of the mind consciousness be normal. When the brain is normal in later life, the manas's directing and controlling can be normal, and the mental activity of the mind consciousness's thinking can also be normal.