The difference between Religion & Philosophy, page-8

The need to have two categories for reality - a material and a non-material - is a need that I never heard explained.
When I request an explanation I get one or more responses, including:

1. If you need to ask you will never understand the explanation.
2. You don't need an explanation, you need to feel it.
3. You don't have enough faith - can be purchased at my nearest evangelical church.
4. That's a silly question.