4075 - I enjoyed your letter dated the sixth light of Chanukah of the Levite's song on the sixth day

The six thousand years the world stands correspond to the sixth day of creation. On the sixth day, Adam made Hashem a king over creation. We prepare for that revelation of the future by spreading Chassidus. https://www.torahrecordings.com/rebbe/igroskodesh/012/004/4075