妙法蓮華經玄義 9.56

9.56

Regarding the crude and subtle of the four gates of the distinctive [teaching]: if discussed in terms of the characteristics of dharmas, the gate of existence accords with phenomena and is therefore crude; the gate of emptiness leans toward principle and is therefore subtle. The gate of emptiness is mere principle and is therefore crude; the gate of both emptiness and existence accesses both and is therefore subtle. The gate of both emptiness and existence retains both and is therefore crude; the gate of neither emptiness nor existence renounces both and is therefore subtle. If considered in terms of faculties and conditions, it is not like this: the gate of existence matches desires and is therefore subtle, while the three gates do not match desires and are therefore crude; the gate of existence is suitable and is therefore subtle, while the three gates are not suitable and are therefore crude; the gate of existence counteracts evil and is therefore subtle, while the three gates do not counteract it and are therefore crude; the gate of existence sees the paramārtha and is therefore subtle, while the three gates do not see the paramārtha and are therefore crude. The remaining three gates are also like this.