涅槃經遊意 1.209

1.209

八味者，開善四德為八味，謂：一常、二恒、三安、四無垢、五不老、六不死、七快樂、八清涼。

As for the eight flavors, Kaishan takes the four virtues as eight flavors, namely: first, permanent; second, enduring; third, secure; fourth, unstained; fifth, ageless; sixth, deathless; seventh, joyous; eighth, refreshing.