Importance of metatags descriptions

It is important step more than that of keyword metatags.
Because search engines like Google often index the web pages by using this description more than
that of metatags keywords.
Make the selected keywords to include inside the description.
But don't include the description as a collection of keywords.
It is better to write your description and content of your website by the professional
content writer.
Good description will be between 25 to 30 words.