amazing truth; cardinal principle; key (to understanding)
threefold truth (all things are void; all things are temporary; all things are in the middle state between these two) (in Tendai)
truth of the origin of suffering
truth of the cessation of suffering
truth of the way to the cessation of suffering
truth of the middle (all things are in a middle state, being void yet having temporary existence)
truth of emptiness (holding that all things are void)
truth of temporariness (holding that all things are temporary)