I just reviesed some points.
Purana Kamma
This two steps are where cakkhunca paticca rupe ca uppajjati cakkhuvinnanam occurs.
step 1: bahidda vinnana “dhatu -> sanna”
- sensory input: nimitta
- using indriya
- on: bahidda rupa, vedana, sanna, sankhara and vinnana
- altered rupa
- bahidda vedana + distorted sanna → giving sensory input experiences
- It depends on the quality of “natural bhavanga state”
- It is not pabhassara citta!
- anusaya/samyojana works in this step. Kāma Guṇa – Origin of Attachment (Tanhā) #12
- patisamvedi step
step 2: ajjhatta vinnana “sanna ->sankappa”
- sensory input: arammana
- using ayatana
- on: ajjhatta rupa, vedana, sanna, sankhara and vinnana
- XX vineyya rupa. ex) cakku vineyya rupa
- samphassa ja vedana (somanassa and domanassa)
- defiled and mind-made sensory input experiences
- bhava starts in here.
- sangati begin working in this step. Kāma Guṇa – Origin of Attachment (Tanhā) #12
- kamaguna works in this step.
- raga or dosa(patigha) patisamvedi step starts in here
Nava Kamma
step 3: tanha paccaya upadana “sankappa -> chanda”
- defiled gati works in this step.
- It depends on one’s gati and how strong a given arammana to occur. Citta, Manō, Viññāna – Nine Stages of a Thought #19
step 4: avijja paccaya sankhara “chanda -> parilaha”
- vinnana get more conteminating
- state of agitation
step 5: avijja paccaya sankhara “parilaha -> pariyesana” (stronger than step 4)
- vaci and kaya abhisankhara
- one is fully engaged with making new kamma