Magic powder ...

... are mostly in Voodoo and Hoodoo used to perform certain spells. Magic powder can be used in different ways. 1. It is in the form of a fine line strewn on the floor as you walk backwards (depending on the powder, to protect or attack). 2. It is blown into the four winds, to clean an area of evil forces or beings. 3. As part of a ritual or spell. 4. As food for the Mojo-sacs. 5. Candles for the ritual to "attract" them, ie the determination to give, after they were rubbed with the Hoodoo ritual oil. 6. To magic items, money, business cards, etc. ... rub