說無垢稱經疏 4.84

4.84

問：何故無垢不自顯佛現病所由，令空中告？答：欲顯一言契當深故，幽冥自他儀皆同故。

Question: Why did Vimalakīrti not explain himself the reason the Buddha manifested illness, but had it announced from the sky? Answer: He wished to show that a single word matched [the truth] deeply, and that both the hidden and the manifest, oneself and others, share the same standard.