Perhaps they needn't even believe - it was enough that they needed angels, and the angels would return gladly.
The story of one person is the story of all of humanity.
If you don't fear, the Unknown will be KIND to you
In love you always win, even if you lose.
That is the Mongolian creation myth: out of two different natures love is born. In contradiction, love grows in strength. In confrontation and transformation, love is preserved.
You might have lost some major battles, but you survived and you're still here.