Traditionally, Saturn is a planet that teaches us about the kind of commitment, boundaries and discipline needed to really mature in the world.  As with all things in astrology, a lot depends on how Saturn shows up in your birth chart…but in general, Saturn is a strict teacher that says, “You might not like this very much, but it has to be done, and once you get through it, you’ll be stronger and wiser.”  Saturn is full of grit.  It’s tough.  It shows you limitations.  It makes you work inside of clock time and calendar time with practical honesty…and it makes you grow through experience.