Jhãna Absorption eliminates all Physical Pain!
The Blessed Buddha once pointed out:
Where does all bodily pain cease, without any even trace remaining?
Aloof of all sense-desire and secluded from any disadvantageous state,
one enters and remains in the first jhāna absorption of directed thought
and sustained thinking, joined with pleasure and joy, born of sole isolation.
It is right there, that all bodily pain ceases without a trace remaining...
Therefore do beings reborn at the fine-material brahma level, never feel
any physical pain, since they are continuously absorbed in this first jhāna..!
On how to attain the Jhāna absorptions:
Microscopic, astronomic, or other visions are not uncommon during jhāna
The Grouped Sayings by the Buddha. Samyutta Nikāya. Book V 213-4
The Abilities section 48. Thread on The Irregular Order: Uppatika 40