The main difference of curses from hex spells is that you will never receive a curse unless you deserve it somehow. Curse can lie dormant for years and decades waiting in the wings.
For example, it may snap into action when a person gets married or loves to pieces, a woman gets pregnant or one’s child gets older. This is a cold and far provident revenge accomplished by Saturn. At the time of curse realization, one may speak about ill fate. Effects of the curses are always predicted in advance.
For example, if a person used to play business low-down alleging as his reason that he wants to make his child’s future happy. This person’s child will depart from this life "accidentally” in the happiest moment for him and you. In other words, in the most joyful moments Saturn may take your dearest things and people. On its energy level curse is an up-going channel above Sahasrara (head). In this appears its dissimilarity from the energy vampirism, when a channel goes parallel to the ground. The sorcerer, having sheared this connection with the "sword" may take off the curse. Such action requires a thorough training and in case of lack of professionalism constitutes a serious danger for everyone involved.