Can I reference anothe essay in the essay I'm writing?

I’m currently writing an essay on the common app for a specific college. I want to reference a back story I made in the common app essay but I’m not sure if this is a good idea. Would it confuse the admissions committee?

The essay should stand alone, make sense to the reader if that reader has not read your application and not read your other essays.

I agree with above poster.

Each college has their own process of reading essays. Some seperate them and have different readers for different prompts. Some have a preliminary reading with just your common app then send onto have someone else do other parts.

It’s too risky to refer to another essay.