The Song of Shabbos.
SKU:BFELD2881
This light, the light of the ohr ha'ganuz (the hidden light) was originally revealed in the sifrei Maharal. After centuries of neglect, it was rekindled for the Torah world by the appearance of the famous maamarim of Hagaon Harav Yitzchak Hutner, zt"l, and recorded in his sefarim, Pachad Yitzchak.