a first person point of view, Parks's perspective of events, personal emotions and facts
A memoir is a true story about a specific moment or event in the author's life. It is a form of biography. Because a memoir is the author writing about him or herself, memoirs are always in first person point of view, written from the author's perspective, and contain personal emotions and facts. In this passage, we see first person point of view and her perspective when the author uses "I" statements. We also see personal emotions and facts when she talks about her lack of intentions.
Answer:
visible light I know for a fact that is the answer
I believe the answer to your question is "wood". This is because people usually get slivers from wood, and considering the start of you last word, it seems to make sense. Also the previous analogy thing, Speck is to dust, is a very realistic analogy thing, so the next one would probably need to be realistic. I hope I helped! And if you need more information, please tell me. :D