The way in which the View connects to the Controlles is making calls.
Post or Get .. for this you need to have a form and a submit button.
Although I do not see any sense, why do you want to send something that is not modifiable? that means you assign value from code.
To send the values to the controller, we use the property name of the input.
So if you want to give an input tag look, you could do something like this: (in the View)
<input type="text" name="miTexto" value="Este es el Contenido" style="border:none;background:none;" readonly>
And then in the controller, you can access this value
public ActionResult Index( string miTexto)
{
return View();
}