Page numbers can vary, so do double check how your copy aligns with mine. I am working with the 60th Anniversary Edition, published by Simon & Schuster Paperbacks.
Someone produced a small frying pan and the bacon went into it and the frying pan was set on the fire. After a moment the bacon began to flutter and dance in the pan.
The bacon is given the ability to "dance" in this segment of text. The food is life-giving, so this example of personification is a reminder that Montag needs this nourishment in order to survive.
We'll just start walking today and see the world and the way the world walks around and talks, the way it really looks.
Here, Montag is blurring the lines between the natural world and the people who live in it. He has realized the importance of nature and how being so far removed from it is destructive to humanity. He longs to allow nature to teach him the truth about how to live.
... all on their quick way down to the cellar where the explosion rid itself of them in its own unreasonable way.
Here, the explosion itself seems to decide who will live and who will die. It is given a sense of intentionality, killing people on purpose. In this way, technology is presented as an ominous and threatening reality for humans.
For another of those impossible instants the city stood, rebuilt and unrecognizable, taller than it had ever hoped or strived to be.
Here, the city is given human emotions—the ability to hope and aspire to greatness. This gives a sense of collectiveness to the destruction, bringing together all of the people who have lived in the city, along with the technological advances that have ultimately ended in their destruction.