The movie is deliberate in its imaginative portrayal but very simplistic in what it has to offer - and rightly so.
It's a timely reminder to indicate the significance of things that are out there in plain sight - yet the importance of which is completely missed out on by others.
In its search for the most important thing, the cat tumbles upon plain old 'life' itself - which flourishes in dirt and under the sun.
Perhaps the personification of the cat was telling in its manner that the importance of anything is to be determined not only from the perspective of 'humans' which creates a distorted understanding of what matters - but rather from the perspective of 'organisms'.