It should be a coincidence that you went to the ghost world. The person who saved you is the same kind you said, and it should be the Buddha. He saved you with compassion and brought you back to this world. This is not a dream, but a reality. I suggest you find a person with a path and talk to him or her to see if you are a psychic among hundreds of millions of people.
Fu is also a fate man. Remember the appearance of the person who saved you. He may be on the earth.