firewrns said: “One more thing that I do not understand is that the bodies of Buddhas and Arahants are rupa too, and can impart suffering in the form of aches and pains. Surely they are then of dukkha nature too?”
Of course. Suffering for an Arahant completely ends only at the death of the physical body, i.e., Parinibbana. An Arahant is free only of sankhara dukkha until death.
You said in the earlier post: “I would like to respectfully point out a possible inconsistency.”
– What is the inconsistency?
Yes. I did say, “A tree or a house (sankata) is not sankhara and do not lead to suffering.” Any sankata leads to suffering only when someone gets attached to it.
Sankhara are basically thoughts. Sankata are rupa. There is a huge difference between them. “sabbe sankhara anicca” basically means our hopes and dreams about future are in vain in the long run.