Dhammakid wrote:Do human beings have a natural (i.e. delusion-based) tendency towards believing in a higher power?
I won't tackle your other questions - just this last one.
A lot of people have said that people do "have a natural tendency towards believing in a higher power."
Atheists and Buddhists tend to say, as you did, that it is delusion-based.
Theists tend to take it as a proof of the existence of God, as in, "We all naturally believe it so it must be true," which is about as circular as an argument can get.
Some psychologists, especially evolutionary psychologists, argue that it is an extension of the child-parent relationship: that the ‘innate’ respect for teachers’ and parents’ authority which underpins learning of survival skills has expanded from its evolutionary origins and transferred to respect for religious teachers and an imaginary parent-figure. Extending this line of thought reveals one of its drawbacks: God or the priest as father-analogue puts us perpetually in the role of child, unable to make decisions of our own and therefore to take responsibility for our own actions. "Just do what I say and you will be all right," may be comforting but it denies us permission to think while it gives us a cop-out. I would rather be an adult.
However, if you experience recurrent impulses towards theism, you now have one explanation (among many possible explanations, I've got to say) which may help you understand yourself a bit better and worry a bit less. I hope it helps.
(Edit - fixed typo)