Yet Hashem, the Blessed King, goes further still: On Yom Kippur (this is the climax) He knocks on the very doors of our hearts, asking us all to return to Him in truth!
 Sparks of Mussar, page 46. By HaRav Chaim Ephraim Zaitchik zt"l. Feldheim Publication Ltd©.
 The Torah of Brisk and Other Gedolim: Rosh Hashanah to Yom Kippur, pages 46-50. By HaRav Shimon Yosef Meller shlita. Cited in Yalkut Lekach Tov. Feldheim Publication Ltd©.