The objective of SEO is to get your website ranked high in the natural or
"organic" section of search engine results. Since SEO rankings are earned
and not bought, a natural search ranking is a sign of credibility to
consumers. However, you'll need to appear high in the natural results,
where they are likely to see you.
Why SEO is important for your website?
There are 3 three main ways to get traffic going to your website.
The first is personal contact. You meet someone, give them your
business card, and say "Visit my website".
The second is - you place ads or pay for traffic (paid ads,
email marketing, newspaper, flyers etc.)
The third is SEO.
The problem with the first two is that they work only as long
as you are working. As soon as you stop handing out business
cards, or stop paying for ads, the traffic to your website stops.