Hello there,
Your topic remind me of some texts of Albert Einstein, in his book " The world as I see it ", and especially this paragraph :
"How strange is the lot of us mortals! Each of us is here for a brief sojourn; for what purpose he knows not, though he sometimes thinks he senses it. But without deeper reflection one knows from daily life that one exists for other people -- first of all for those upon whose smiles and well-being our own happiness is wholly dependent, and then for the many, unknown to us, to whose destinies we are bound by the ties of sympathy. A hundred times every day I remind myself that my inner and outer life are based on the labors of other men, living and dead, and that I must exert myself in order to give in the same measure as I have received and am still receiving "






In what conserned the text posted by you, I think these 6 questions are asked by every body, no matter what is his ideology or his religion or culture, because it is instinctif beings to ask these questions ( why am I here ? Am I free to do what I want or not ? etc..)

.
As a summary, I can add, as a definition of human, that human is a Quizzical Animal, by typical of " a social animal or political animal .

Asking questions is a human quality cum laude.