Can we become immune to physical or emotional pain, the pain of losing loved ones, for example?

The man is chameleon-like, adapts to the conditions around him, one of the best examples is: Masutatsu Oyama — the founder of the Kyokushin Kai fighting style. He left in the mountains at one point with only one martial arts book. For two years he lived in the mountains, in the wild, where he only trained. He trained to break…