Simplify the following text for a Grade 6 native English-speaking person.
Original: His Master Course is Sivaya Subramuniyaswami 's comprehensive treatise on every aspect of Saivism in three books and more than 3,000 pages , composed in what he called `` talkanese '' - a flowing version of written English that resembles the spoken language and evokes ancient Hindu oral traditions .
Simplified: It is in three books and more than 3,000 pages . The work is written in a flowing version of written English that is similar to the spoken language as well as ancient Hindu oral traditions .