[331] Which, on that occasion, is contact (phassa)?
That which on that occasion is contact, contacting, the act of contacting, the state of having contacted — this is the contact present on that occasion. …
Which, on that occasion, is one-pointedness of mind (cittass'ekaggatā)?
That which on that occasion is stability of mind (citta) — this is the one-pointedness of mind present on that occasion. …
Which, on that occasion, is doubt (vicikicchā)?
That which on that occasion is doubting, the act of doubting, the state of being in doubt, perplexity, doubt, being of two minds, a forked path, uncertainty, inability to grasp one alternative, hesitancy, vacillation, failure to fathom, rigidity of mind, mental scarification — this is the doubt present on that occasion. …
Or whatever other dependently-arisen immaterial phenomena (dhammā) exist on that occasion — these phenomena are unwholesome (akusala).
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.