Map of pain on body

Map of pain. Parts of body experience certain pain (repeatable, unless something changes) given certain action (impact or input on it). Certain actions are abrasive, invasive, destructive, while certain are soft, or do essentially nothing.

Ofc, pain is also subjective as felt, an elephant vs person both feel differently, but thing is that both do feel pain, and is it common across all conscious? and so are other experiences that being feels. But given similar structure and oragniazation of matter into bio-form, pain stimulus (or experience) repeatable.

(pain,.. all experiences) = f(body,action (of forces : light, physical contact forces coming from close atomic forces)

physical forces action: stimulates change in structure of being, and being generates signals (which are later (or there or somewhere) inferred as pain

pain is again, physical , and mental. Although, however, in harsh reality, most beings mentally get strong, (but in this boundless universe there are no limits, you can always conceptualize a bigger fish whether it may or may not exist in reality) as its recovery is different from that of physical nature, while physically, it takes long time recovery, and can be permanent in todays world because it has not yet learned to rejuvenate physically.

However, pain and pleasure and other senses, how did they arise for a being, (as they would be existing in absolute sense, or a creation created ), but acquiring them on to the being, pain has been a signal for survival. Those who felt pain stayed away from things that would kill them (but how do organisms even begin to have such a feeling?), ofc, after feeling pain it was rather easy to get away, unless ofc, lots of pain and ceasing life would be answer, which is beyond where pain serves no purpose to its own entity. That is, if pain would kill one, would it serve any purpose to it?. but it does tell that as the pain is generated by the being itself through its body on itself, that this body the entity has evolved is capable of feeling such a pain whether it exists after it or not,
one thing is life was just evolving, and only that survived which experienced this miracle of this universe, the pain. But why there is severe pain, is it perhaps because it survived and rest didn’t?