Your questions are clear.
1. Arammana means any sensory input.
- But sukha/dukha vedana (pleasant/unpleasant bodily feeling) are produced only by sensory inputs to the physical body (kayika vedana).
- All other arammana (sensory inputs) initially produce only “neutral” (adukkhamasukha) vedana.
- All arammana (sensory inputs) come in because we have a human body. For example, when you are walking down a street, you are exposed to arammana (sensory inputs) common to all others there. But some strong sukha/dukha vedana (like a serious injury) can be due to specific past kamma.
- Most arammana (sensory inputs) come in because we have a human body.
The other statements are correct.
