3. Commentary on the Dyad-Triad Conditional Relations
In the Duka-Tika Paṭṭhāna, the teaching was given in brief by way of merely extracting the questions thus: "A root wholesome mental state arises dependent on a root wholesome mental state by root condition." But the detail should be stated by the method beginning with "dependent on wholesome non-greed, non-hate and non-delusion arise"; since that can be known by the method shown above even though not stated, not even a single term or a single condition was stated. But that which was the teaching given in brief should be understood as having been done thus. For, having combined the wholesome term together with the root dyad, all obtainable conditions were shown in the section on the dependent by way of both the positive and the negative; the positive-negative and negative-positive methods and the conascence section and so on were not shown; it was merely said "it should be expanded just as the section on the dependent." In the section on questions, without even answering the question, having merely made the extraction of the question, the obtainable conditions were shown by way of the positive-negative only. And just as the wholesome term, so too the unwholesome and indeterminate terms should be combined together with the root dyad and the root-wholesome duka-tika should be expounded - thus it was said.
Beyond that, by the method beginning with "a root mental state associated with pleasant feeling," twenty-one duka-tikas beginning with the root-feeling duka-tika were shown. But since a root is neither manifest and impinging nor non-manifest but impinging, therefore the manifest-and-impinging and non-manifest-but-impinging terms were not combined together with the root term. Thus, having combined the twenty-two triads together with the root dyad by way of what is obtainable, they were again combined together with all the dyads beginning with the with-root dyad and ending with the refuge dyad. Therein, whatever term does not admit of combination together with whatever other term, that is not obtained in the Pāḷi text itself - thus it was said. Thus here, having combined twenty-two triads together with one dyad, then again twenty-two with another, twenty-two with another - in succession, the twenty-two triads were combined together with the obtainable dyad terms in the hundred dyads; thus, taking the twenty-two triads and incorporating them into the hundred dyads, what is called the Duka-Tika Paṭṭhāna was taught. Therein, in whichever places the abbreviation of the Pāḷi text was made by showing the method, in those very places its detail should be understood in accordance with the method shown.
Commentary on the Dyad-Triad Conditional Relations.