Q. Why is the mitzva of Kidush Levana the very first mitzva of the Torah?

Horav Aron Miller Shlit’a mentioned that setting our own Torah system of counting time is essential in establishing the reality of what Hashem created.

One may add that as we mentioned in other articles, renovating and constantly changing yourself, is essential in keeping Torah and mitzvos properly and that is well clearly represented by the moon cycles.Rabbi A. Bartfeld as revised by, Horav Dovid Pam, Horav Aharon Miller, Horav Chanoch Ehrentreu and Horav Kalman Ochs Shlit’a