Although we don't always understand the effects planets have on our lives, some events, like a Mercury retrograde, can be easier with a little preparation.
As Mercury retraces his steps in the sign of Capricorn career and professional aspects of birth charts are set in queue for reflection, contemplation and introspection.
All planets go through a retrograde period. Astrologically these planets seem bring into our experience predestined events relating to their particular influence.