As we remove the negative traits we make room for Hashem’s love to enter and our desire to bond to Him increases. The reason being self-discipline is the tool which breaks the yetzer hara and breaks down the barriers that block Hashem’s presence.
The call of the teruah is not only the call of Hashem to us but also our call to Hashem. The tekiah is a long unbroken blast, the shevarim are three blows and the teruah is nine blasts. The tekiah represents a sigh of love, the shevarim symbolizes a sort of groan that comes before the tears and the teruah is similar to uncontrollable sobbing.
The teruah is seen as a fusion of love and awe which brings Klal Yisrael to sigh over the lack of revealed Kingship in this world.
The shevarim are felt in the form of Hashem great fiery love for us to which we let out groans and tears.
The teruah injects us with Hashem’s great love which causes us to love Hashem even more leading to a greater love between us.
The powerful sounds of the Shofar should fill us with awe mixed with great longing to return to Gan Eden where we felt Hashem’s closeness and love and never doubted His continuous presence.