Greetings, Brother / Sister!
In regards to the fixed Stars that might be both good and bad, you might wish to sublimate them into their good rather than bad and utilize their energies. Castor as far as I see is not all bad, so maybe would be good to utilize all its energies into its better way thus controlling where its power goes. While blocking the bad ways with protection magic. Stars are ways the energies of this world tend to flow into, and we may try to utilize them as we utilize river power with riverbeds and river dams and dikes. Even animals instinctively do so, such as beavers. All astrology is about raw power we are to sublimate and put into the building civilizations rather than let it destroy us and stay wild.
Same goes for Saturn and other signs in chart. There are signs that tend more to be of Destiny signs. Destiny is our major self-realization in life which makes these signs very strong. For example Saturn makes Line of Destiny on our hands which is most outstanding in most outstanding people who did something important in this world. These signs make us influential, they give us true power and influence on the fates of the world and our path - with them we are more felt by the universe so to say. These are all Lunar points and Saturn first and foremost, and some others. These also can be utilized into great deeds instead of letting them stray destroying our life at will like they tend to do by they raw nature.
I think Gods give us this very knowledge by teaching us things because there is no other way to survive but to work with the forces of the universe. There is of course still way to try to block and alleviate them as well, but they are still there in the sky and tend to work on their own if we do not use them for our cause. So to utilize and consciously use them would guarantee they "will stay quiet busy" in some way and not free to stray and wreck havoc.
