I just read something on the net which said "The road to no-fear is scary." and it struck me how true that is.
What we dwell on is what we eventually dwell in.
Sometimes it's a deep and powerful life crisis that brings grief.
A powerful sulk.
And in some cases it can be an identification with the pain of humanity.
My experiences were both good. It's not the whole answer, but it's good to be open to this.