The ark of the covenant and its impact on the people of Israel is clearly so important ,as we see in the fact that the verses dealing with it are bracketed in the Torah by two upside down Hebrew letter “Nuns ( pronounced as Noons).
The verses read :
“When the Ark would journey, Moshe said ‘Arise, HaShem, and let Your enemies be scattered and let those who hate You flee from before You.’ And when it rested, he would say, return O HaShem among the myriads and thousands of Israel.'” [Bamdibar 10:35-36].”