十不二門指要鈔 2.59

2.59

Second, from "turbid water..." down, the metaphor. Turbid water illustrates the defiled mind in delusion; clear water illustrates the pure mind after fruition; waves illustrate the three thousand [realms] as entire function; wetness illustrates the three thousand [realms] as entire substance. One must know that in defilement, although the water is turbid, it is also completely wetness acting as waves; when clear, could there be separate waves and wetness? Therefore it says 'there is no difference,' meaning that both the waves and the wetness have no difference. Those others who claim that only the wetness within the waves has no difference—if the wet nature does not change, how could the wave nature change?