body becomes $body. When needing to access
* a field's raw values, developers/themers are strongly encouraged to use these
* variables. Otherwise they will have to explicitly specify the desired field
* language, e.g. $node->body['en'], thus overriding any language negotiation
* rule that was previously applied.
* @see template_preprocess()
* @see template_preprocess_node()
* @see template_process()