This is a Torah class (in English interspersed with translated Hebrew verses from Torah) about one particular detail of the building of the Tabernacle, found in Exodus 38:21-29. The Torah mentions "vavin" (hooked nails that resembled the Hebrew letter 'vav.') Jews-- it's fascinating. If you haven't listened to a Torah shiur give it a try. The overall lesson of the class is that every Jew is a part of the Torah (spoiler--the "vavin," which are technically outside the boundary of the Tabernacle since they were pointed outward from the outermost poles, and the outer walls were hung on these hooks....