Whenever I see a planet going in retrograde on Zevist calendar, I see the planet being indicated that it will retrograde in a sign. This month Saturn will be like this:♄ ℞(♓)
Does this mean Saturn will retrograde in Pisces only? What does this mean, how will or can this affect me?
Can I start a black magic working during this Saturn retrograde? Or can I start a black magic working before this retrograde starts?
Thank you.

