How to understand the spirit of not afraid of suffering and not afraid of death?

One is not afraid of hardships, that is, don't be selective in doing things, and try to solve them when you have difficulties, instead of taking detours and giving up difficulties.

Second, they are not afraid of death, just like heroes, desperate to save others. This is a state of not thinking too much, that is, when something happens in front of you, making a decisive decision without hesitation. This is the spirit of not being afraid of death. Of course, this spirit can also be reflected in the works.