Why did Abigail drink blood in the woods?

In Arthur Miller's play "The Crucible," Abigail Williams drinks blood in the woods as part of a ritual to invoke the spirits and curse Elizabeth Proctor, hoping to eliminate her so she can be with John Proctor. This act symbolizes her desperation and willingness to engage in dark, manipulative actions to achieve her desires. The blood-drinking incident highlights the themes of superstition, hysteria, and the lengths to which individuals will go for love and revenge.