This book of Sabian Symbols has become one of my handiest, most used books. It is not for the faint-of-heart..not for the idle seeker. If you want transformational info, buy this book. Use it for more depth/layers for your natal (birth) chart, your progressed charts, solar returns, etc. Few charts escape its evaluations at my house !
I did not know the work of Dane Rudhyar. Now that I'm reading this book, I find him a true sage, and a friend. The human mind can be so vast that it can become also fraightful... But with books like this, our inner drive to find meanings in life is enhanced and encouraged.