A focal point sounds like one of the easy bits of design: decide what matters, then make it noticeable. Lovely. Now fit in the client's five announcements, newsletter, offer, social links and request to make the logo bigger.
I still find the principle easier to explain than to apply well.
What should someone notice first?
The focal point is the element intended to receive attention first. It could be a headline, product, photograph or action. It does not automatically have to be the biggest button.
Start with the job the design needs to do. On a page introducing a service, the first task may be understanding the offer. Asking for an enquiry before explaining it is not necessarily a better hierarchy just because the button is bright.
An example, without the mystery diagram
Picture a landing page with a service explanation, consultation link, newsletter box and social icons all fighting for attention. If everything is important, where the hell do you expect people to look?
Give the offer the clearest position, put the relevant next step beside or after it, and quieten the unrelated subscription and social actions. The page should guide the visitor instead of making them untangle your priorities.
That does not require removing every secondary link. It requires giving each element a role.
Less competition, not less meaning
Size, contrast, position and surrounding space are ways to establish that order. Simply turning something red is not a universal answer. Important information should not depend on colour alone.[1]
Ask what the visitor needs first, what follows and what can be quieter. Remove an element when it serves no useful purpose, not just because minimalism looks fashionable.
Then look at the actual design at the size people will use it. If everything is still shouting, making the main element louder may not be the missing move. The rest of the page may need to stop interrupting.