The Torah assumes this, the Talmud discusses the experiences of several people who made the trip there and back, and classic Jewish works describe the process. You want a real good spacesuit to make this trip
Many find it intriguing that the Kaddish makes no mention of the deceased. Kaddish speaks of G-d's greatness. What does this have to do with the one for whom I am saying Kaddish?
I am a grandchild of Holocaust survivors but I feel haunted as if I went through it myself. I regularly see images of Auschwitz in dreams and flashes. I am sometimes even scared to tell people I am Jewish. Am I crazy?