The potential reiterated each year during Chanuka is for us to transform the darkness into light, i.e., to see how the light can be extracted from the darkness itself....
"When the holy soul leaves the human body…an impure spirit descends upon the body. When the soul is returned to the body and the impurity is removed, it remains upon his hands, and cannot be removed until the human washes them, thereby being sanctified…"...
"Asher Yatzar can be used as a powerful segula (something that offers protection or serves as a remedy) for the refua shelema (complete recovery) of unwell people....
