This is directly from the UC website about the 2015 essay prompt for all applicants.
Describe the world you come from — for example, your family, community or school — and tell us how your world has shaped your dreams and aspirations.
Okay, I was talking to one of my teachers about this today and he said I should write about something that makes me stand out from the typical person, and use it to tie in my characteristics. I own a reef tank and I have always had a saltwater tank for basically my whole life. He told me I should write about my passion for this, how it relates to my characteristics, how it shaped me, and how I view the world because of it. I think it is a great idea, but I just wanted your personal opinions. Thank you all very much.
Blake F