The origin of the white wizard

According to the classification of magic, there are this attribute magic, auxiliary magic and so on. The opposite of white magic is black magic. Black magic is not only some destructive spells, but also white magic. However, the difference between white magic and black magic is that you need to use your soul as a guide when casting spells. Just like Harry Potter, his mother cast a dark magic called the guardian of love when Harry was a child. And the magic of those parents is to attract with other people's souls! So white magic doesn't need to sacrifice soul, but black magic does!