All of us have a desire to learn about Shabbos, to toivel (immerse) in the waters of Shabbos, because Shabbos is everything and everything is connected to Shabbos. These shiurim are using the path of machshavah (thought) to understand the yesodos (foundations) of Shabbos so we can live Shabbos.
The base text used is Rav Eliya Weintraub's z'l "Razah D'Shabbos" with additional essays by Rav Kluger, the Nezer Yisroel.