why we give inner links while we write content for website ?

why we give inner links while we creating a content for websites ? can anyone explain me

 

It's good for SEO as it helps with the internal link structure and relevance of your site.

 

If you give link to your internal pages with keywords then the keyword will get boost and the particular page is crawled.

 

and another one doubt why we use keyword density and href link while submitting articles ? thanks in advance

 

Internal links (from pages within your site to other pages within your site) give you an important advantage. They allow you to use keywords in those links that tell the search engines what the pages the links point to are all about. This is a great advantage in boosting those pages' rankings for those keywords.

 

Spreads the 'link juice' throughout your site.

 

Helps in on page SEO and as Animal888 said, it spreads the link juice

 

This is called internal linking. Google consider this linking in counting of back links process.