"Zot Chanukah, which literally means 'this is Chanukah,' is the traditional name given to the last and concluding day of the holiday. It is on this day that the power and potential of Chanukah is fully revealed......
Chanuka Overview and the Responsibility as Lamplighters
Breitowitz, Rabbi Dr. Yitzchok
"Chanukah is that message of hope, faith in Hashem, and faith in yourself. 'Don’t despair, don’t give up, keep on going. My light is with you, and when My light is with you, your puny efforts can accomplish what would otherwise seem to be impossible.'...
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....