Ah the old path, numerology, astrology, alchemy, palmistry,
Focus on the elements of the signs, and planets first.
Fire, Water, Earth, Air, then study some Greek mythology, then study Greek music theory.
At this point you will be prepared to undertake the mathematics of the subject.
Remember when discussing the signs, and music both are related to the gods of Greek mythology.
Favorable harmonious tones, or planet positions can be felt and heard when expressed with an instrument.