How did Rowling wake up in the secret garden?

The last time there was a car accident, Kim took her out of the hospital in the rain and exchanged her soul to keep her alive. In this way, Ji's soul survived in Jin's body, while Jin's soul stayed in Ji Rowling's body and became a vegetable.

But in the dream, it was Kim's father who lifted the magic, making Kim and Kim's souls stop communicating, and then both of them woke up in their own bodies.

PS, I like the movie The Secret Garden very much. It's really great. )