Exploring the approach of the Shaarei Teshuva that life is all about being Mekadeish Shem Shamayim. How is it the foundation of everything we do? Why is the main zechus we do for a nifter to say Kaddish?
For more on this topic you can check out the work of Rabbi Shraga Freedman, who has devoted his life to spreading this Rabbeinu Yonah and his focus on what Kiddush Hashem is really all about, through his Kiddush Hashem Foundation at https://livingkiddushhashem.org/).