What is a blood spirit?

In the TV series "Sweet honey is as heavy as frost", blood spirit is forbidden by heaven, which can change life another day.

In ancient times, there was a book called "Montuo Jing", which recorded all kinds of forbidden arts. There is a skill called "Xue Lingzi", which can change a person's life. However, as shown in the book, the performer needs to cut off seven meridians, inject half of the essence in the body into blood drops, condense them into blood spirits, and feed them to the injured. However, the rescuer will lose half his fate and life span.

Related plot

In the play, Jin Mi asks Lian Chao for the light of the sky to save Xu Feng. But the light of the sky can't be carried in containers. Even a fairy with high spiritual strength can only support herself for three hours at most. After Jin Mi injected the light of the sky into Jiuzhuan elixir, he was seriously injured because his body could not bear its strength.

Originally, Jin could not be found, but Runyu searched all kinds of books to find a way to treat her, and finally found the blood spirit forbidden art in Mengtuo Sutra.

Originally, Su Li had seen the Dream Tuo Sutra in the provincial classics hall. After Su Li's death, Runyu brought some relics of Su Li back to heaven from the bottom of Dongting Lake. Blood Zi Ling is a spell written by Su Li. He doesn't know the truth of this spell. At that time, Kim found that his life was at stake, so he had to take a chance. However, although Run Yu saved Jin Mi, she also lost most of her life.