form model binding in laravel 5.2

I have been reading about form model binding https://laravelcollective.com/docs/5.0/html#form-model-binding It's very cool to populate DB values in html form. I tried like this and this works fantastic. {{ Form::model($university,array('url' => admin_path('universities/edit'),'id' => 'add_university','name' =>'add_university','data-validate'=>"parsley")) }} {{ Form::label('university_name', 'University name',array('class'=>'control-label')) }} {{ Form::text('university_name')}} {{Form::close()}} But the problem is here, Cause i want to add more attributes in input like class SO i am using {{ Form::label('university_name', 'University name',array('class'=>'control-label')) }} {{ Form::text('university_name','',array('class' => 'form-control'))}} If i leave blank valuecolumn then nothing populate in textbox and if i using like this {{ Form::label('university_name', 'University name',array('class'=>'control-label')) }} {{ Form::text('university_name',$university->university_name,array('class' => 'form-control'))}} Then what is use of model binding. Please explain. Thanks