A path is a line that goes from a starting point A to an accomplishment B. Each customer who comes to the site doesn’t care about the overall structure. They care about getting from A to B. That’s a path. Where are your golf shoes? That’s a path. Does my cell phone support international calling? That’s a path. Collect all the paths you can think of in a pile, pull out the 8 paths that 80% of your visitors come looking for, and that’s your home page.