there's nothing to be comprehended from "nothingness", that's the point of it

infinity is not something to be seen,

if u want to inspire the concept, research fractals or some (not infinite, but it inspires infinity) recursive patterns that loop.

if you're a programmer,
then infinity is a while(true);

(it's a never ending loop)

infinity can be expressed as constant motion.

The universe goes on forever, but the elements in this universe have a finite size that is growing still.

anyway, this is not a subject.