Life After Life Review

Please give me some proof/story to suggest afterlife may be real

"You are at the threshold," she replied, gesturing toward a vast, golden river that seemed to flow upward into a sky filled with colors he had no names for. "Life there is just the first draft. Here, we are the architects. Every dream you ever had, every kind word you spoke—they are the stones we use to build this place". Life After Life

Elias looked down. He had no weight, no pain, and no fear. Behind him, he could see a shimmering veil. Through it, he saw a hospital room where doctors moved in frantic, silent slow-motion around a body that looked like a discarded coat. "Am I dead?" Elias asked. Please give me some proof/story to suggest afterlife