There are dark jewels in this world that can be salvaged, purified and taken
as precious bounty for the good.
And there is darkness itself, the essential absence of light, that must only
wait its time to expire.
How can we tell between them?
If the darkness fights back, there is hope.
In creating the whole of existence, G-d made forces that reveal Him and
forces that oppose Him --He made light and He made darkness. One who does good
brings in more light. One who fails, feeds the darkness.
But the one who fails and then returns transcends that entire scheme. He
reaches out directly to the Essential Creator. Beyond darkness and light.
And so, his darkness becomes light.
When light pushes away the darkness, eventually another darkness shall come.
When the darkness itself is transformed into light, it is a light that no
darkness can oppose.