WordPress get specific page or post content

How can I get specific page or post content to any of pages in the WordPress.You don’t have a write sql codes.Simply call to WordPress core functions only.

	post_content; // get all post details
		$contents 	= apply_filters('the_content', $contents); // filter to get post content
		$contents 	= str_replace(']]>', ']]>', $contents);
		echo $contents;
    	?>

In the above example, it will display only page description/content only.Also this can be use in any pages in the wordpress.