The stars in their constant movements throughout the heavens are constantly emitting both positive and negative magnetic vibrations. Vedic Astrology is the occult science that studies how these influences affect each person both for good nd for ill. There is a practical side to the study of Vedic Astrology that involves the use of certain remedial agents that act to protect the body and mind. For thousands of years mankind has known that certain gemstones, metals, and plants can have a positive effect on the body and mind by nullifying or mitigating the harmful influences of the stars. Of these three elements, Swami Sri Yukteswar, in the Autobiography of a Yogi, written by Paramahansa Yogananda, stated that faultless gems of not less than two carats, worn in contact with the skin, are the most beneficial for astrological purposes.
Gems are similar to a lightning rod.
They create, what is in effect, a protective field around the body, regulating which cosmic forces are absorbed by the body. In time, the proper gemstones, if kept in contact with the skin, can bring about changes in the mind and body. The use of astrological gemstones for remedial purposes was mentioned in the ancient Vedic texts. More modern studies can be found today in current astrological and Ayurvedic medical writings. Spiritual progress may be achieved through many avenues such as prayer, meditation, and service,to name a few.