"The śūnyatā or emptiness in the Prajñāpāramitā Sūtras refers to the emptiness of the self-nature of all dharmas. It doesn’t mean nothingness. Rather it refers to the fact that all dharmas, whether worldly or world transcending, are devoid of fundamental nature. This nature would include the conceptual, the corporeal, the abstract, or anything physical. The nature of every dharma or phenomenal existence is impermanence. If any view posits something as permanent, then such a view cannot point to the ultimate [nature of reality]."
January 1, 1970
https://en.wikiquote.org/wiki/Sheng_Yen