Excuse me, how to determine what the eight characters mean by "seven kills with blades"? If the symbol is ominous, how should it be resolved? thank you

Although it is mixed, but only for Gan Yang, chestnut:

A kill with Geng, kill with unitary, and kill with knife with seven. When you are injured, watch the knife move and rush to kill you. The blade that kills people in the shade moves in the sun and in the dark, so it is not a disease. The blade of self-killing is in the morning. This blade is powerless, so it is not a weapon. It doesn't matter if it moves. So the blades that kill people in the shade are just blades that make money in the sun, and all blades that dry in the shade are powerless. This blade is incompetent and can't drive to kill people.