肇論新疏 2.407

2.407

若能捨己心於封內、尋玄機於事外，齊萬有於一虛、曉至虛之非無者，當言至人終日應會，與物推移乘運（時）撫化，未始為有也。

If one can relinquish one's mind from confinement and seek the profound mystery beyond phenomena, equating the myriad existences in one emptiness and understanding that utmost emptiness is not non-existent, one will say that the utmost person responds and encounters all day long, shifting with things and adapting transformation according with circumstances, yet has never constituted existence.