What are the three forms of challenge?

What is the general physiological challenge?

What example can we use to support the physiological challenge?

What can cause hallucinations and delusions?

What can be said against the physiological challenge?

what is the general psychological challenge?

If the psychological challenge were true, what would that mean for religious experiences?

What did William James say in reference to the psychological challenge?

What is the problem with Freud's approach?

What faith can the psychological challenge not say much to rebuttal?

what is animism?

What link does freud make between religion and animism?

What does Freud call religion?

What is the general sociological challenge?

Who particularly supports the sociological challenge?

Who influenced Marx, who were these people?

What did Marx call religion?

What did Marx believe religion does?

What does Marx believe about heaven and hell?

What kind of people does Marx refer religious people to?

What shaped Marx's opinion of religion?

What did Marx blame for the economic inequality?