We live in a world of duality where Light and Darkness are two sides of the same coin. Black magic is the negative use of energies and power by evil minded humans. People who practice black magic or take the help of professional black magicians are extremely dedicated people who have one goal in their minds; to harm or deprive others from living peaceful lives: make them sick, bed ridden and finally kill them and use their souls to harm others.
All humans have their two sides; divine as well as evil, all humans have different ratios of evil and divine within them, on the other hands there are some humans who have turned 99.9% evil and the remaining divinity within them is overtaken by darkness.
Sun is the light provider to our planet but at any given time half of the Earth remains in darkness while the other half gets the light of the Sun. The world of light is hosted by angels and higher beings while the world of darkness is ruled by the spirit world and is hosted by demons, devils and evil entities, collectively it’s called the world of Devil. We humans have been given the choice to dwell in darkness or move towards the light.