The sound of the horn is a peculiar and quite unique noise. It is not a sound of this world, it is a heavenly sound, a sound of victory, a sign that God’s claim to justice has been satisfied. It is the sound of God’s holiness, of the blood, of the sacrifice, of the battle, of deliverance, of taking authority. Shofar horns – shofarot – are ancient biblical instruments, yet they are not to be understood or used like a musical instrument, but rather like a “spiritual weapon”. Through the sound of the shofar there comes a proclamation into the spiritual dimension itself.

The word “battering ram” goes back to the ram itself, and it denotes an ancient weapon used to attack the walls or gates of enemy fortresses. Blowing the shofar does exactly the same in the spiritual realm. It serves to destroy enemy strongholds and to bring about breakthroughs in the spiritual dimension. Every blast of the horn is a blow against the spiritual walls and gates of enemy fortresses.

For the weapons of our warfare are not carnal but mighty in God for the destruction of strongholds; thus we tear down arrogant edifices of thought and every high thing that exalts itself against the knowledge of God.
2 Corinthians 10:4-5

More on this:
https://www.gottes-haus.de/schofar