The Tiantai notion of inclusive principle 理具 encompasses dharmas that exist fully in the present moment, as well as dharmas that have existed in the past and will exist in the future. Like 'coins in a pocket' , in this 'omnicentric' picture of reality, all dharmas are arrayed side by side (Ziporyn 2014). All ordered patterns found within things are entailed by a single instant of thought. Tiantai Buddhism thus teaches the inconceivable object of contemplation 不可思議境 that blends reality and illusion 眞妄和合. It is inconceivable in that is indeterminable in its moral character and is beyond words. Both Buddha, oneʼs own mind, and the mind of other sentient beings are all "devoid of a univocally discernible identity" (Ziporyn 2013, 268). As far as their "intersubsumptive" character is concerned, there is no substantial difference between the Buddha, oneʼs own mind, and the mind of other sentient beings.

In contrast to the pluralistic notion of multiple intersubsumptive truths presented by different perspectives on a reality that combines aspects of purity and impurity, Ziporyn (2014, 2013) characterizes the Huayan teaching as "absolute" in character in that it privileges an "ironic" form of coherence. In this ironic form of coherence enlightenment and harmony of all things are combined with indeterminacy and inexpressibility 不可說. In Huayan philosophical teachings, seemingly incongruous factors are united together by a principle of thusness that applies equally to both harmony and disharmony.

References:

Mou, Zongsan 牟宗三. 1989. Bore yu foxing 般若與佛性 . Taiwan:  Taiwan Xuesheng shuju.

Ziporyn, Brook. 2013. Beyond Oneness and Difference: Li and Coherence in Chinese Buddhist Thought and its Antecedents. Albany, NY:  SUNY Press.

----. 2014. “Tiantai Buddhism.”  In Stanford Encyclopedia of Philosophy. https://plato.stanford.edu/entries/buddhism-tiantai/.