There are several shiurim in the department for the study of the concealed Torah, arranged according to level. The first shiur is introductory, with the study of Oztros Chaim. In the second shiur, Eitz Chaim is studied in depth. In the third shiur, kavonos of the Rashash are studied.
In 5684 (1924), the yeshiva published a booklet in which its leaders set out its aims as follows. "First, the study of the revealed Torah, as it is studied in all the holy yeshivos, [including] Shas in depth and poskim. Second, the study of kabboloh, mussar and inquiry. [This is] the only place in the world where the Torah of kabboloh is studied in an orderly manner, progressing from simple teachings to more difficult ones, taught by talmidei chachomim who are qualified for the task.
"A person doesn't always find the path that he ought to be taking. For the want of a mentor he might stray onto tortuous sidetracks. Or, he might go right inside without enough advance preparation and lose his bearings due to the powerful, intoxicating aromas of PaRDeS [the acronym of the initial letters of the four levels of Torah interpretation: pshat (simple meaning), remez (allusion), drush (expounding) and sod (secret teachings)]. This [danger] led to [the imposition] of protective measures and limitations, and to [people's] keeping away from the approaches to the wisdom of the Kabboloh.
"The yeshiva's intention is not to provide its students with a simple, superficial understanding of the works of kabboloh, to afford a mere glimpse, wherein lies the danger of stumbling — as Chazal put it, "He glimpsed and was injured." Only extensive inquiry and in-depth study of all the kabboloh works ensures full, rounded knowledge. This is what Yeshivas Shaar HaShomayim and its branches aim to provide."
