妙法蓮華經玄贊 5.218

5.218

有為德相可別知，車說奇玩之相，無為之德一相總故，但說於化城。又二無異，城中說有門樓堂宇，即珍玩故。

The marks of conditioned virtues can be distinctly recognized, so the carts are described with the characteristics of rare toys; because the virtues of the unconditioned have one general mark, only the conjured city is spoken of. Furthermore, the two do not differ: within the city, gate-towers, halls, and chambers are mentioned, which are themselves rare toys.