To bear

What is fascinating to me is to discover how people can contain the suffering without cursing or becoming violent.
Not be sedated (che significa?). I think it is like learning to ride a bike. Pedaling makes our muscles stronger and capable of riding uphill.
A sort of habit to tollerate the ill. After a storm comes a calm.
I am well aware of the hard way but I'm sure that our bodies develop such energy to overcome the suffering.
I won't be a drug addict or a junkie, and neither will I be a kind of masochist.
To bear. This is what makes me curious about the meaning.

*..sorry..the red highlight, I don't really understand..