The mind consciousness, because of its strong capacity for thinking and analysis, can reason and explain principles; the manas does not understand principles, so it must follow the reasoning presented by the mind consciousness. There are many times when the manas also cannot make up its mind, and then it must follow the arrangements of the mind consciousness. If it were not so, and the manas always acted as the master according to its own habitual tendencies, refusing to listen to the mind consciousness, then the manas would never come to understand principles, would never embark on the path of learning Buddhism and cultivation, and would never be able to eradicate afflictions or attain buddhahood. In a family, the head of the household makes the decisions, but at times he must also listen to the children's opinions and satisfy their requests. The same is true for a nation: even the president must heed the will of the people.
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