The Aveilus of Tisha B’av Is So We Should Come Back to Our Loving Av in Shamayim

א ב Av means “father”. It is striking that the month of all the Tzaros (and when it’s not favorable to have a: טפ ִש ִמ ִִcourt-case) is called a (loving) “father”.

There is a good reason why this dreadful month is called: א ב “father”. The closing words of Megilas Eicha are: הֲ ש יב נוּ ִה'ִא לֶ יךִִָ ו נ שוּב הִִאיכהִהִכא “Bring us back to You, Hashem, and we will return”. Doing Teshuva is the final goal of the Aveilus of Tisha B'av, and indeed, right after Av comes Elul, which means time for Teshuva. (Maharil)