Saturn is often simplified to being "bad", or "malefic" or "restrictions". Sure, it can be all of those things - however, in its exalted, or matured form - it's mastery. The restrictions that it creates are those to generate mastery (as opposed to 'more limitation') Saturn, as the ruler of Capricorn likes structure, routine, and things being contained. So, as an example - Saturn in one's Second House may show "limitations" or the experience of lack in early years. Whereas the matured person will work through those challenges ('enemies', often enemies of the self, of the mind) to have "mastery" of their resources.