Simplify the following text for a Grade 8 native English-speaking person.
Original: They also believe that English translations of the Guru Granth Sahib only give a preliminary understanding of the Guru Granth Sahib .
Simplified: Thus , the Guru Granth Sahib means a Master Book by the Teacher . The Guru Granth Sahib , is a collection of hymns of the first five `` Sikh Gurus '' , the `` Ninth Guru '' , and various saints .