Likutei Sichos vol. 26 page 59 ff. Bo Class Two. The point of Yiddishkiet and Torah and Mitzvos is to change the world. This Mitzvah changes time (which is the first creation.) And it changes all of it!

Bo Likutei Sichos – Vol 26 p 59 ff Exile and Redemption (115) Class One. Going out of Mitzrayim, brought the Yidden freedom not by losing their Egyptian masters, but by becoming servants of Hashem. Thus the Mitzvos complete the exodus, and the first to be given and recorded is Kiddush Hachodesh and Ibbur Shanim….