The phoenix must burn to emerge.
With a hint of good judgment, to fear nothing, not failure or suffering or even death, indicates that you value life the most. You live to the extreme; you push limits; you spend your time building legacies. Those do not die.
Failure is so important. We speak about success all the time. It is the ability to resist failure or use failure that often leads to greater success. I've met people who don't want to try for fear of failing.