It is an example of, theme. Theme would tell you how the mood is set. <em />It's not symbolism, because there was no object to describe that moment, or any past moment. Hope this helps!
Answer:
When I first started to learn how to ride my bike it was scary and I fell and scraped my knees a lot.
Then my dad supported me until I was able to ride on my own and that was nice to have my dads support
Then finally I am able to ride hands-free, down a hill, at breakneck speed.
Answer:
As at the time sliced bread was a new thing and quite extraordinary to people back then and now their excitement and joy is used to explain how exiting or incredible something is.
Explanation: