I had visited Auschwitz in actual reality, years ago. With my headset on, I tried to summon the emotional intensity I remembered feeling then. But I couldn’t, because all of the things that had made it powerful were missing. When I was there, I was touching things, smelling things, sifting soil between my fingers that the guide said contained human bone ash, feeling comforted as I recited the mourner’s prayer, the kaddish, with others, the ancient words an undertow of paradox and praise: May the great Name be blessed, forever and ever and ever