What Are Tisha B’Av & the Three Weeks? The Jewish national period of mourning.
The “Three Weeks” between the 17th of Tammuz and the Tisha B’Av have historically been days of misfortune and calamity for the Jewish people. During this time, both the First and Second Temples were destroyed, amongst other tragedies. These days are referred to as the period “within the straits” (bein hametzarim), in accordance with the verse: “All her oppressors have overtaken her within the straits” (Lamentations 1:3). During this time, various aspects of mourning are observed by the entire nation. We minimize joy and celebration – no weddings are held, we do not listen to music, nor are there haircuts or shaving. The expressions of mourning take on greater intensity as we approach the day of Tisha B’Av. Since the attribute of Divine judgment (“din”) is acutely felt, we avoid potentially dangerous or risky endeavors.
When mentioning Bathing It is referring to swimming.