After I's Death

What exactly are they? Is it a ghost? Is it an energy body? Is it a particle? Or is it some kind of creature that we cannot recognize? When the obsession of the dead collided with the world of the living, I realized that my work is ultimately a profound practice about life, memory and farewell. Those secrets that cannot be told and things that cannot be completed after the body dies, please leave them to me. I will use a calm way to complete the most passionate emotional legacy in the world.