Is God Just a Way of Solving a Mystery by Appealing to a Greater Mystery?

Questions about whether God is just a way of solving a mystery by appealing to a greater mystery, whether subjective experience falls under a category of knowing, why people in the Bible got to hear and see God but we don’t, and an analogy between God and Hitler. How would you respond to Matt Dillahunty, who says that God is just a way of solving a mystery by appealing to a greater mystery? Does my undeniable, subjective experience of God fall under a category of knowing in epistemology? Why did the people in the Bible get to hear and see God while they were alive, but we have to die first? How would you respond to someone who asked, “If a Jew during the Holocaust was spared the gas chamber in favor of spending the rest of his life with Hitler, would he call that Heaven?”