When Can the Imputed Nature (parikalpita-svabhāva) of the Manas Be Eliminated?

It is precisely because of the manas's imputed nature (parikalpita-svabhāva) that sentient beings undergo the various sufferings of birth-and-death in saṃsāra; when the manas's imputed nature is removed, nirvāṇa is attained. However, the imputed nature is not so easy to eliminate. Only when one has eliminated the self-view (ātma-dṛṣṭi), eradicated self-grasping, realized true suchness, and when the grasping at the self of dharmas has also been completely extinguished, can the manas's imputed nature be fully and thoroughly removed, thereby attaining great liberation.