cycling 4 LEDs at varrying speeds

Oh, and you have the memory of a goldfish.

I get it, "who is this guy that just started an account and expects us to help him?" I'm hoping for some real help, not links to other projects that may work, if I know what and how to extract and apply it here I would but like I said that's not how I learn.

What I'm hoping for is:
"here try this simple code: [code ] [code/ ]
see how the xx changes as you change xx? Try xx and see how xx speeds up and xx slows down, that is xx at it's simplest form"

I understand that analogy but how does it apply?