The Natal chart is cast for the day of birth. Other charts are cast differently. There is no change from a singular type of chart like the Natal, or one of the progressed chart years which from year to year can take quite a while to move (you don't include the houses on these). Non-singular charts like the Solar and Lunar Returns which can be cast any second in different places along with Transits, the houses on them do move. You're supposed to compare between what you have intuited out of your fixed time natal chart, with what you see in the motion charts, Non-singular charts. The Natal chart being your blueprint, how your energies are supposed to "act", how you will probably be "acting" in your life. You place this fixed blueprint next to the other moving charts to see potentialities in events, whether they are definite, likely, or just probable.
Before you become a Zevist, much of what you can get out of this is in the definite-likely range, but when you dedicate to Satan a lot of the bad stuff in your chart becomes less likely to occur based on that alone usually, with meditation reducing it even more and opening up for better cosmic/astral energies to act on you.