I've heard tell that the most "basic question" that we can try to answer is "why is there something rather than nothing?" (Other's might think the most basic question is "why won't my willie let me alone," but let's ignore that one for this discussion.)
It seems that many people cannot understand why there is a universe at all (I'm in that group -- I accept it, but don't understand it).
Everyone, as I understand it, agrees that "nothing comes from nothing." (I'm not sure, but I think that makes some kind of sense...but
Yet, here we are, and all we curious humans want to know why and how we got here.
How do you approach this? Most of humanity (on the numbers, I'd say "virtually all" of humanity) has decided that there must be something "outside," something "not this," that caused our existence.
But on what basis do you suppose that? Is it wrong to ask, if our universe, our existence is impossible, "what makes an outside cause possible?" Where did it come from, why does it exist, what kind of thing is it that existed and plotted creation when there was -- literally -- nothing but it?
The question I am trying to ask -- for anyone who would like to try actually "philosophising," is simply this: "why can't something exist without something to cause it to exist, and yet the cause can exist without a cause?"
This is an exercise in philosophy. Do your best.