 Later, in his mature period, as explained below, Tsongkhapa will be explicit. He will state categorically that Asaṅga's Yogācāra Buddhism is quite separate from, and in profundity inferior to, Nāgārjuna's Middle Way school (Wangchuk 2013), removing all references to a Great Middle Way school. He will say the ālaya-vijñāna, devoid of subject-object bifurcation, provides the essential mind-stuff for defilement (=saṃsāra) and carries seeds for purification (=nirvāṇa) in a Yogācāra system that is fundamentally wrong, and at odds with the way things actually are. He will give the ālaya-vijñāna only a heuristic value, and say a correct view (the *Prāsaṅgika-madhyamaka view) of the workings of psycho-physical reality (the Buddhist skandhas) totally invalidates it. As Jeffrey Hopkins (2002, 2006b) has shown conclusively, such statements constitute an explicit rejection of Dolpopa's view, a position Tsongkhapa still is formulating in early works like the Explanation of the Difficult Points.