Astrology is an attempt to bring order, consistency and meaning to the series of usually confused and conflicting happenings which constitute our life experience. 

The “basic scientist” likewise, as he tries to discover laws of Nature,” seeks to reduce the complexity and seeming chaos of natural phenomena to simple, regular and predictable patterns. Order and simplicity are the two foundations of “predictability”; and the sole business of the scientist, at the level of applied science, is to predict what will happen. A law of science is a formula of predictability. It states that this will take place when such and such things occur together under such and such conditions. 

Where Astrology essentially differs from modern science is, first, in making certain assumptions about the universe and man; secondly , on the basis of these assumptions, in seeking to discover not only the “order” inherent in the events of life on earth, but also their “meaning”. 

-excerpt taken from                     

Planetary Octaves & Rulership by Dane Rudhyar