Piya's essay is here -
http://dharmafarer.org/wordpress/wp-con ... 7-piya.pdfThe relevant part says -
Volition (cetanā) is another word for karma: “Volition, bhikshus, is karma, I say! Having intended,
one creates karma through body, speech and mind.” (A 6.63).5 This refers to any “intentional” action
through the body, speech, or mind, that is motivated by any of the three unwholesome roots (greed, hate,
or delusion). Such actions may be conscious or unconscious. For example, is we habitually make the
aspiration (patthāna) for a heavenly birth, that thought is reinforced in the subconscious as a latent tendency
or habitual karma. At the moment of dying, this habitual karma is very likely to dominate us, resulting
in our being reborn in such a place.
In this pithy little passage, he's woven several threads together concerning the 2nd nidana of Dependant Origination, ie with sankharas as condition, consciousness [comes to be].
Firstly, the unconscious kamma, or perhaps more appropriately, the kamma performed without awareness (asampajana). That's alluded to in SN 12.25, Bhumija Sutta.
Next is the reference to "latent tendency". This is his (and the traditional) translation of anusaya. Now, the more standard presentation of DO's 2nd nidana would say that sankharas (in DO) are a reference to cetana. Yet, SN 12.38, Cetana Sutta suggests that anusayas themselves can be the condition for consciousness. Taking Ven Thanissaro's translation -
Staying at Savatthi... [the Blessed One said,] "What one intends, what one arranges, and what one obsesses about (lies with): This is a support for the stationing of consciousness. There being a support, there is a landing [or: an establishing] of consciousness. When that consciousness lands and grows, there is the production of renewed becoming in the future. When there is the production of renewed becoming in the future, there is future birth, aging & death, sorrow, lamentation, pain, distress, & despair. Such is the origination of this entire mass of suffering & stress.
"If one doesn't intend and doesn't arrange, but one still obsesses (lies with) [about something], this is a support for the stationing of consciousness. There being a support, there is a landing of consciousness. When that consciousness lands and grows, there is the production of renewed becoming in the future. When there is the production of renewed becoming in the future, there is future birth, aging & death, sorrow, lamentation, pain, distress, & despair. Such [too] is the origination of this entire mass of suffering & stress.
Where he translates the Pali verb anuseti as "obsesses", I've supplied the more traditional and literal "lies with".
This passage is really speaking about the situation where there is no intention, but there are anusayas (implied by the anuseti). It appears from this sutta that "sankhara" in DO's 2nd nidana may need to be given a broader reading than the more well-known cetana.