Fear

is it always a bad thing?
can it be healthy?
do we feel it at times in order to protect ourselves from something or someone who will or has harmed us in some way?

Someone once told me that fear means "false evidence appearing real".
At the time i completely agreed.

Now, i'm not so sure that's a complete enough definition of what fear is.

Don't we have to be afraid of some things in life to even stay alive?

And how do we distinguish between
"rational" and "irrational" fear?
healthy or unhealthy?
inhibiting vs. protecting?


I don't want to have any fear.
Fear is not a pleasant thing.
But I don't think we can always control it.
And I think in certain cases it is there for a reason.

I'm not sure though....