 Suchness and Ignorance, on Fazang’s account, are the two fundamental aspects of One Mind. The aspects of Suchness as unchanging and Ignorance as empty correspond to Suchness Mind. This correspondence positions Suchness Mind as the witnessing of unconditioned dharmas. Similarly, the aspects of Suchness as accompanying change and Ignorance as actively functioning correspond to Samsara Mind. This correspondence positions Samsara Mind as the witnessing of conditioned dharmas. (Fazang provides an elaborate analysis of Samsara Mind, inspired by the   Yijing [Classic of Changes]. The gist of his analysis explains that, because Suchness is present to Samsara Mind, right practice for the cessation of dukkha involves attending to the Suchness aspect of conditioned dharmas rather than causing those dharmas to cease.) 