When and why did rouge become immortal in Living Buddha Jigong!

At the end of the first part of Living Buddha Jigong, rouge was taken away by the Buddha, and she became immortal under the Buddha's seat.

Before Jigong became a monk, he had a fiancee named Rouge. On the wedding night, Jigong became a monk, and Rouge was still waiting for her husband in the boudoir. As a result, she learned that her husband was crazy to become a monk, and her mother-in-law said that Foucault drove Rouge out of the house. Rouge is married and can't go back to her family. Innocent rouge began to bear a grudge against Ji Gong, and was instigated by Dapeng Jing to practice witchcraft and kill Ji Gong for revenge. Eventually, she didn't.