Does a silver lining mindset lead to content complacency? Or maybe it’s a false dream?

We’ve all heard the stories of the people that are too stubborn to die, she/he’ll fight till the last day. What about our goals? If you have such a good positive outlook on life, things “happen for a reason,” and you move on. What about questioning and fighting back a bit? I’m not saying let’s mess with fate, but maybe god is testing us to see how much we are willing to fight for that “dream” we say we have.