亦有亦空门 (亦有亦空門) yì yǒu yì kōng mén

yì yǒu yì kōng mén set phrase the teaching of both the phenomenal world and of emptiness
Domain: Buddhism 佛教
Notes: One of the Tiantai 四門 'four classifications of teaching' (Ding '亦有亦空門'; FGDB '亦有亦空門')