Consider the herbalist's scales: things are carefully weighed out to achieve a desired balance. Magic plays with balance too. Sometimes the desire is for all forces to be equal and harmonious. At other times goals are accomplished by deliberately, consciously tipping the scales to provide the required effect.
Left and Right:
Once upon a time, not too long ago, the concept of Dualism associated the direction right with God, high, male, and all those good things. Thus children were forced to use their right hands, the dexterous hand, whether that was their dominant hand or not. Children who were naturally left-handed (the sinister hand) literally had it beaten out of them until they were dexterous too....
... I am so sorry to do this to you, but this post has been moved to my new website, Book of Shadows, and can be found in its entirety here: Balance in Magick - Left and Right
As you explore this site, you may find links to a "page not found" instead of something cool and magickal. For this I apologize. I am very working hard behind the scenes to restore those pages along with a link to their homes on my new website where they can be viewed in full.