We can now truly appreciate the amazing connection between the mitzvah of Tzitzis and the mitzvah of Shabbas. On Shabbas Kodesh, we complete the sixteen “aliyot” to the Torah and the sixteen lamb-korbanos that purge the heart of the yetzer hara residing in its left cavity. We express our desire to accomplish this feat in our tefilos on Shabbas with the words: "וטהר לבנו לעבדך באמת". Thus, by performing the mitzvah of Tzitzis by wearing a garment with sixteen strands in front—representing the sixteen “aliyot” to the Torah—and sixteen strands in back—representing the sixteen lamb-sacrifices—a Jew sanctifies and purifies his heart. By doing so, he is able to truly live up to the expectation of: "ולא תתורו אחרי לבבכם ואחרי עיניכם אשר אתם זונים אחריהם".