Insanity, any purpose?

A granduncle whom I’ve never met died a couple of days ago, at age 66. He’s younger than my dad. I know very little about this relative, whatever that I know about him, I heard from my mum. He was the youngest child of my great-grandfather. According to my mum, this granduncle was very bright and being the youngest, he was doted on. Unfortunately, he developed some mental problems while studying overseas. He had to come back and I presumed his condition must have been so serious and no one could take care of him that he was placed in the mental hospital, for more than 40 years I estimate. He didn’t die from an illness in there but choked to his death.

When my grandma was still alive, my mum did accompany her to visit him at the mental hospital. Besides them, I think his sister was his only other visitor. Surprisingly, despite his insanity, he actually recognised them. Back then, he was already gorging down the food they brought him so I guess it didn’t come as a surprise to anyone when the hospital said he choked and died.

I’m just wondering, what is god’s purpose in making a person experience insanity and locked up almost all his life, practically forgotten by his family members? Is an insane person aware of his mind? What could he have learnt from being mad that can help him in his journey of life?

Am I thinking too much again? Ok, just ignore me. I’m not mad…not yet.