Being a carrier of the ark meant to sustain the yearning for the Creator in the air without letting it touch the ground, i.e., your ego. The ark symbolizes the corrected soul in which the Creator is revealed.
Until that moment, only the area between the cherubs is revealed, angel-like birds that are on the cover of the ark. The Creator’s voice is heard from there, which means that the attribute of Bina is attained. Therefore, whoever carried the ark must have this attribute.
Question: But whoever carries the ark leans on the ground and lifts the ark, thus carrying it above the ground.
Answer: It only seems that the carriers of the ark lift it. In fact, the ark lifts them above the ground because it is the attribute of Bina. The ark detaches them from the ego, and it is as if they float above the ground. This means that when a person works with the intention of in order to bestow unto the Creator, he actually ascends.
From KabTV’s “Secrets of the Eternal Book” 5/20/15