ChaosBringer666 said:
For instance if I did a mars square and affirmed “my Mars square with Saturn aspect is growing powerful. I am more self disciplined in a positive and healthy way for me” would this work to increase my self discipline? I would assume so.
Well you can just try and see what happens. In Satanism you will very often need to test things for yourself and collect personal experience.
As far as I know, planets who aspect each other are kind of "tied together", so working to strengthen your Mars with the spiritual Mars square would likely help you to get more of the higher octave of the Saturn influence you have on it (stability and discipline).
Red Saturn-Mars aspects tend to be bad for your confidence and energy, but as you empower your Mars to a certain level, it will start to turn into a more "stabilizing" influence that will give resilience to your confidence.
This is how Saturn works in general, in all of its aspects. The blue ones (trine and sextile) already have this stabilizing effect from the get-go, whereas the red ones (square, opposition, conjunction) need you to advance yourself to a higher level first before they show benefits. Saturn with advancement turns into a stabilizing influence that gives a lot of staying-power.