Dreams

What is a dream?
How do most people dream?
Does everyone dream, or is it just some people?
What is the difference between a literal dream (one that you have while you are asleep) and a metaphorical dream (a goal which you wish to accomplish, or a place you wish to reach)?  Can they be closely related or are they always separate?
Are dreams important?  Why?
Is there any significant symbolism in dreams, whether these dreams are literal or metaphorical?
How deeply do you have to sleep to dream?
Are there any side-effects from dreaming?
Is dreaming a side-effect of something else?
Do people remember their dreams always, often, sometimes, rarely, or never?
What is the significance of a recurring dream?  A recurring theme?

Age of Man

What is considered to be the "Age of Man?"
When did it start?
How would it come to be over?
What are characteristics of the Age of Man?  The effects?
Is there really an "Age of Man," or is this a phrase that Leto uses metaphorically?

Lesser Gods

What is the difference between monotheism and polytheism?
How prominently does religion figure into the average American's life?
In what religions do the concept of greater gods versus lesser gods figure heavily?
How many of the world's most prominent religions today are monotheistic?  How many are polytheistic?
What is the most well-known religion based on a theory of greater and lesser gods?
Are there any mythologies in which lesser gods are a concept that figures into today's media?
Is religion a factor to which many Americans are frequently exposed?
About how many people today think of themselves as being very religious people, and how many people don't even make it to church on Sundays?
How does atheism differ from monotheism and polytheism?
What is agnosticism?
How do different religions handle the concept of "Heaven and Hell?"  Is this concept even a factor?