宗鏡錄 2.19

2.19

Answer: The phenomena to be eliminated (pratipakṣa-heya) in the three realms are confused and deluded, yet they are still called consciousness-only. The nature of unconditioned and undefiled phenomena is the antidote (pratipakṣa), and their substance is free of confusion and delusion; without being stated, this is naturally established. Therefore [the scriptures] merely state that the three realms are only citta. Furthermore, as a general thesis among the various schools, conditioned and unconditioned, defiled and pure phenomena all take citta as their root. The Sarvāstivādins and others say: "The unconditioned is manifested through citta; the conditioned arises through citta." Because defiled and pure phenomena arise through citta, and its operative power as a condition is preponderant, citta is said to be the root.