The ideal goal for an SEO Plan is to increase the number of relevant people visits your website. It is the purpose of SEO to increase the ideal traffic on the web pages. For example, e-commerce companies can only monetize and boost their sales only if there is an increase in relevant traffic to an e-commerce site. Thus we can become a larger net and capture much more fish.
If you want to learn SEO, check out this SEO Training Course by Intellipaat.
Also, watch this video on SEO: