Black Salt is used like any sachet powder in casting spells that you want to create a vanishing or darkness affect.  It protects you from evil and unpure intentions against you.  This element is best used to reverse a negative situation and to change your luck back to positive.  Sprinkling black salt in dark areas where you feel evil spirits are lurking is a quick way to let that entity know who is in charge and drive it out.  Apply some black salt to a black candle and vanish your enemies from your path and wish them far away from you.  This salt is volcanic and is naturally charged to work quickly with your intentions to bring negagtive situations being thrown at you to an end.