We conclude Chapter 33 in our lessons in Tanya. We are discussing the theme of the importance of happiness in our lives and how to go about achieving happiness.
The Alter Rebbe tells us we need to focus on the most essential Mitzvah of the Torah – having faith in God. Once we are able to see God and Godliness in everything, it is this that should bring us to a state of happiness.
Through seeing God in everything, we can literally turn darkness into light. This is the essential theme of the lesson and this chapter.