Pantheism is the view that everything is part of an all-encompassing, immanent ⎽⎽⎽⎽⎽⎽⎽⎽.
- Spinoza
In the West, pantheism was formalized as a separate theology and philosophy based on the work of the 17th-century philosopher Baruch Spinoza. - God
Excellent! - Jacobi
Jacobi claimed that Spinoza's doctrine was pure materialism, because all Nature and God are said to be nothing but extended substance. - Einstein
According to Einstein, the book only dealt with the concept of a personal god and not the impersonal God of pantheism.