"It is impossible to take up esoteric science without encountering, at some time or other, the subject of magic

"It is impossible to take up esoteric science without
encountering, at some time or other, the subject of magic and,
particularly, black magic. But it would be more sensible to leave
the area of black magic alone, and above all you should avoid
thinking you might fall prey to it. Those who have this fear are
already attracting negative currents to themselves. Yes, because
this fear makes them vulnerable and, therefore, open to all kinds
of dark elements floating in the atmosphere. It's the same as
with epidemics: if you are fragile and receptive, you catch every
germ from people you meet, but if you are robust, resistant and
emissive you escape them.
So, don't worry about black magic: make yourself strong, think
of the light, work with the light, and then the light in you will
repel the negative. A wheel that's turning very fast throws off
the mud, but as soon as it begins to turn more slowly any dirt
sticks to it. And when the flow of a spring is strong, it sweeps
away the leaves and twigs that might otherwise obstruct it. So,
instead of allowing your mind to become lazy, be like a spring."

Omraam Mikhaël Aïvanhov