How would one become a vengeful spirit when they die? Why would they want to become a vengeful spirit?

Becoming a vengeful spirit is not something that can be done intentionally. It is believed that a person may become a vengeful spirit if they die with unresolved anger, hatred, or a desire for revenge. This could be due to a feeling of injustice or a sense of betrayal. It is believed that these feelings can linger after death and cause the spirit to become vengeful.

The reasons why someone would want to become a vengeful spirit vary. Some may want to seek revenge against those who wronged them in life, while others may want to protect those they love from harm. Ultimately, it is up to the individual to decide why they would want to become a vengeful spirit.