right effort and the four bases of power

I only today realized how the traditional formula of right effort also contains the four bases of power. The formula is:

...anuppannānaṃ pāpakānaṃ akusalānaṃ dhammānaṃ anuppādāya chandaṃ janeti vāyamati viriyaṃ ārabhati cittaṃ paggaṇhāti padahati.

...uppannānaṃ pāpakānaṃ akusalānaṃ dhammānaṃ pahānāya chandaṃ janeti vāyamati viriyaṃ ārabhati cittaṃ paggaṇhāti padahati.

...anuppannānaṃ kusalānaṃ dhammānaṃ uppādāya chandaṃ janeti vāyamati viriyaṃ ārabhati cittaṃ paggaṇhāti padahati.

...uppannānaṃ kusalānaṃ dhammānaṃ ṭhitiyā asammosāya bhiyyobhāvāya vepullāya bhāvanāya pārippūriyā chandaṃ janeti vāyamati viriyaṃ ārabhati cittaṃ paggaṇhāti padahati.

For the non-arising of unarisen evil, unskillful qualities, [the bhikkhu] generates desire, tries, arouses energy, applies the mind, and strives.

For the abandonment of arisen evil, unskillful qualities...

For the arising of non-arisen skillful qualities...

For the continuation, non-confusion, increase, making abundant, and completion of arisen skillful qualities...

In the string of verb phrases at the end of each sentence, we start with chandaṃ janeti, generating desire. We also have viriyaṃ ārabhati, arousing energy. And finally, cittaṃ paggaṇhāti, the application of mind. That's three of the iddhipāda. The fourth, vīmaṃsā? That's simply the ability to discriminate what qualities are skillful and what are not.

Neat!