And what fuels the arising of the awakening factor of investigation of principles, or, when it has arisen, fully develops it? There are qualities that are skillful and unskillful, blameworthy and blameless, inferior and superior, and those with a portion of dark or bright. Frequent rational application of mind to them fuels the arising of the awakening factor of investigation of principles, or, when it has arisen, fully develops it.

And what fuels the arising of the awakening factor of energy, or, when it has arisen, fully develops it? There are the elements of initiative, persistence, and exertion. Frequent rational application of mind to them fuels the arising of the awakening factor of energy, or, when it has arisen, fully develops it.

And what fuels the arising of the awakening factor of rapture, or, when it has arisen, fully develops it? There are things that are grounds for the awakening factor of rapture. Frequent rational application of mind to them fuels the arising of the awakening factor of rapture, or, when it has arisen, fully develops it.