The ascent of the Ark of the Covenant to Jerusalem is an event marked by profound spiritual elevation. The loud blasts and shouts heard during the procession serve a direct emotional purpose, meant to awaken intense feelings of joy and gladness among the people [מלבי״ם].
Beyond the physical celebration, these sounds reflect a deep shift in David's personal understanding. He realizes that he had previously misjudged the true, elevated nature of the Torah, which the Ark represents. Initially, David believed the Torah existed on the spiritual level of angels, forces that are characterized by constant motion and noise. However, he now recognizes that the Torah originates from the absolute highest spiritual realm, the Throne of Glory. In this ultimate place, God is not found within noise and commotion. Therefore, the loud blasts of the horn do not actually represent a chaotic uproar. Instead, they paradoxically symbolize a delicate, quiet stillness, a profound silence that accompanies God as He sits upon His holy throne [אהבת יהונתן].