大方廣圓覺修多羅了義經略疏 1.479

1.479

無生死之法也。既知萬法如空華，豈更見有輪轉？還丹一粒點鐵成金，真理一言點凡成聖，亦釋因不異果，如斯因地方謂真修。

There is no dharma of birth and death. Once one knows that myriad dharmas are like sky-flowers, how could one further see transmigration as existing? A single grain of the elixir of restoration turns iron into gold; a single word of true principle turns an ordinary person into a sage. This also explains that cause is not different from fruit; such a causal ground alone can be called true cultivation.