Thanks for the reference. I think that you mis-understood the quote.
Everything in the universe can be descibed as being in some part of a cycle. This cycle would be creation, growth, conservation, decay, and destuction. Everything that we percieve in the universe is at some stage of this cycle. The concept of infinity is the idea that some action or object appears to not decay, or stop according to our perception of , and relative to other objects and actions.
Infinity is a concept, not a size.