At the conclusion of Neilah, at the final moments of Yom Kippur, we have a dramatic "Declaration of Faith:" The Chazan says Sh'ma Yisrael, & we repeat it; he says Baruch Shem K'vod Malchuto 3 times & we repeat it; & he then says "Hashem Hu Ha-Elokim" 7 times & we repeat it. What is the meaning of all this?
Taken together, Tefila, Teshuva & Tzedaka are the instruments which allow us to operate on our damaged souls & repair them, the tools with which we can rebuild – our holy relationship with Hashem.