What's the point of candidate personas? I read the text in your website (well skimmed) and i still don't get how it helps with finding the right person to fill

What's the point of candidate personas? I read the text in your website (well skimmed) and i still don't get how it helps with finding the right person to fill the job. Does your AI match the job description to a list of candidate resumes? Or does your customer take the personas you generate and do that themselves? I'm not a recruiter so this isn't making sense to me but perhaps that's a good thing if it does make sense to the right customer