Take Shelter, from writer/director Jeff Nichols, is a movie that examines the difficult issue of mental health with tender hands and great care. Nichols is quickly becoming, if not already considered to be, one of the great American story tellers. His partnership with Michael Shannon has spanned over several films and has reaped great rewards. Take Shelter is for me his finest piece of his work to date. Shannon play Curtis who is, frankly, just a normal man, a blue collar worker with a young family and a dog in the back yard behind the white picket fence. There is…