Pure art. The ants clearly represent ants, and for the cheese, it's obviously a delicate allegory for cheese. The zoom and the inverting colors however, they ment to show the anxiety of upper middle class white men in a gender normative workplace mixed with the Nietzschean hopelessness of the world without God.
(Or it could mean that David Lynch loves cheese very, very much. One of the two.)
(Or it could mean that David Lynch loves cheese very, very much. One of the two.)