The clearer this is, the better Google, for example, understands not only your site but your strategy and the better it knows how to place and rank your content - at least that's the theory.
Getting your internal linking strategy right is another part of helping your entire site rank better. Internal linking helps search engines navigate your site - it directs them to your most important pages, and not only understands its hierarchy but also how users might move around your website. The clearer this is, the better Google, for example, understands not only your site but your strategy and the better it knows how to place and rank your content - at least that's the theory.