1. A Freudian symbol for sexual passion. See GUN.
2. A knife being used to sever anything in two implies the impending end of a relationship of any kind - business, friendship, love.
3. A rusty or dull knife implies the dreamer's lack of ability to sever a relationship that is not serving her.
4. Cutting yourself with a knife warns that situations may arise where you become your own worst enemy. See: Weapon
Astrological parallels: Mars
Corresponding Dream Tarot Card: Justice