pp. 243 - 245: Shabbos is not another day like the preceding six days - it is exactly the opposite ! Hashem calls Shabbos - "My day" because only on Shabbos is the light of Hashem revealed in a way that it actually is (not through the conception of the 6 days).
Study the Sefer "B'yam Darkecha, to discover the beauty of Shabbos through the teachings of Rabbi Yitzchak Meir Morgenstern. This comprehensive class will shed light on how to appreciate the true gift of Shabbos as seen in the light of Chassidus. You can e-mail Rabbi Michalowicz with questions or comments at rabbimichalowicz@gmail.com