Get blade @section into variable?

I am building a tiny custom CMS for a project. I want show an excerpt from each article on the index page.

Each of my article blades has @section('content') ... @endsection with the article contents.

Is it possible to extract the contents from this blade section in the controller?

Here is my controller:

public function index()
{
    $articles = File::files(resource_path('views/cms/articles'));

    foreach ($articles as $article)
    {
        $slug = explode('.', $articles->getFilename())[0];
        // Is it possible to get contents into a string here?
        dd(view("cms.articles.{$slug}"));
    }

    return view('articles-index', compact('articles'));
}