Rav Yosef Irgas Italian Mekubel Divrei Yosef Shomer Emunim Mavo Pesachim

Mechaber of Shomer Emunim Hakadmon, Mavo Pesachim & Shu"t Divrei Yosef.
One of the greatest Italian Kabbalists, Rav Yosef Irgas is perhaps most well-known for his sefer, Shomer Emunim HaKadmon. This great work was written in the form of an argument in which he explains concepts from Kabbalah and defends them against detractors.