Simplify the following text for a Grade 9 native English-speaking person.
Original: The term occult is also used as a label given to a number of magical organizations or orders , the teachings and practices taught by them , and to a large body of current and historical literature and spiritual philosophy related to this subject .
Simplified: The term occult is also used as a label given to a number of magical organizations or orders , and the teachings and practices as taught by them . The name also extends to a large body of literature and spiritual philosophy .