The eighth consciousness always tries its best to cooperate with the manas' mental factor of volition, striving to satisfy all of the manas' demands and needs, without a single word of complaint. However, whether the manas has the retributive enjoyment of merit, whether seeds have been planted, whether those seeds have matured, and whether the conditions for the growth of karmic retribution are complete—these are major questions. If these conditions are not complete, the eighth consciousness has no way to satisfy what the manas needs and seeks.
The various dissatisfactions in human life demonstrate that the eighth consciousness has no way to fulfill the manas' needs. Only when the manas has needs that go unmet does one feel dissatisfied; if the manas has no demands, there is no lament or feeling of dissatisfaction, because no such goal was ever set and no such requirement existed in that regard. Without requirements, without intention, without desire, one naturally would not expect to harvest any fruit. Of course, many of the wishes the manas sets are unknown to the mind consciousness, and so the mind consciousness does not know why the manas is displeased or unhappy, why one feels inexplicably melancholy and bereft, or why one inexplicably feels jealous of others' gains.
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