No matter who you are, you can always find new vitality and strength through Truth.
The Truth is G-d’s own Light – and there is no darkness in the world that is too dark for G-d.
There is no impurity or unholiness in the world that does not have exits through which one can escape.
It is just that people don’t see the openings because of the intense darkness.
Rebbe Nachman, Likutei Moharan I: 112, end, as cited in Tsohar: Light, by BRI