Manas Conditions All Dharmas with Emphasis, Focus, and Selection.

The imputed nature (parikalpita-svabhāva) of the manas does not mean that it grasps at all dharmas, or that it can grasp at all of them simultaneously; because its energy is insufficient, it must make some choices from moment to moment. Some dharmas the manas is indifferent to; some dharmas it loathes and avoids—although this still counts as grasping; some dharmas it craves with great attachment; and some dharmas it habitually engages with and discerns through attention. Although the manas can attend universally to all dharmas, it cannot attend to all of them simultaneously at one moment; there are still priorities, emphases, and selections—especially regarding the dharmas it hopes the six consciousnesses will process, which are even more selectively chosen. Otherwise, the six consciousnesses would be unable to keep up with the discernment and would become exhausted and break down. On this point, the manas understands well.