What does the fortune teller mean?

What does the eight-character fortune teller mean by giving birth to a child with a sheep knife?

The original meaning of the sheep's blade is that when the sheep is on the blade, the extremes meet. The blade of the sheep is too evil, strong and fierce, stronger than the pillar, which will inevitably lead to disaster. The person who leads the sheep blade is smart, strong and decisive. If it can be used by me, it will go bad as well. Most people who have the blade of a sheep are short-tempered and outspoken.