What does "The Ferry of the Soul" 20 episodes mean? I don't understand.

In episode 17, this woman divined Xia Dongqing with tarot cards and divined three cards: Tower, Devil and Victim. What's the point? Xia Dongqing is the victim, and Xia Dongqing's sister is an evil ghost. When Xia Dongqing was five years old, Zhao Li attached his sister to him, which Xia Dongqing can see from now on. In fact, Xia Dongqing's sister is not simple. His sister has the power to destroy the world. Wang created a virtual world with a bottle and let him live with his sister, but in the end, his sister told the truth and returned to the world where he had seen ghosts. Finally, Wang He created a virtual world and let him live with his sister in his own body. I didn't expect his sister to be smart enough to tell the truth. When Wang saw it, he remembered the past and reincarnated ... the purpose was that his sister was a demon. Soul ferry is soul ferry. Why is there a ghost ferry ahead? It is estimated that there will be a series.