Anchor text provides the user relevant description or clarification about the link's destination. Anchor text, sometimes referred to as clickable text is a vital element in SEO.
When creating links for the purpose of SEO, the most important part is the actual text that makes up the link, this text is called the Anchor Text.
If you want your page to rank highly for a specific keyword combination, you have to use these keywords in your Anchor Text in all of your external incoming links and internal links.
If the Anchor Text is made up from your Keywords, that link is weighted very heavily in the search engines especially in the Google algorithm. Therefore, using the specific key word links and connecting to your website is a very important aspect of your SEO.