Shiurim in English about the depth of the times and the chagim

chag ha shavuot -matan Tora -matan tsura

The dept of Yishmael hating Yisrael

Korban pesach -our neshama-Refael cohen

The dept of Yishmael hating Am Ysrael the sons of Yitsaak

Dayenu-a chidush from the Abir Yaakov -Refael cohen.