The Tefilos of Shabbos &

From B'yam Darkecha on the Beauty of Shabbos & the Yomim Tovim: R Yossi Michalowicz by R Yossi Michalowicz.

pp. 154-158: Why we make no requests during Tefilos Shabbos; and what the nature of the requests of the weekday Tefilos are - based on "Da'as Elyon" vs. "Da'as Tachton." Understanding the customs of the Arizal at the Friday night Seuda.