At the most basic level, astrology demonstrates the objective, concrete relationship between the individual and the macrocosm (the heavens, the solar system, the visible universe, etc). Why?
Because the natal chart is the literal positions of the heavenly bodies (sun, moon, planets and stars) at the moment the first breath outside the mother’s womb is taken.
Without considering subjective meanings associated with the natal chart, this personal relationship with the heavens is still significant. Recognizing the unique position of the planets at the moment of your birth creates a tangible connection to the greater whole, and the foundation between the rational mind and the Mystery of Life is strengthened.
Astrological theory is based upon the Law of Correspondences: as above, so below.
In Western astrology the signs (specific locations in the heavens) correspond to the physical body.
In Vedic astrology, the planets are associated with energy centers: the crown center corresponds with the Sun, the Ajna with the moon, the throat center with Mercury, Venus with the heart center, Mars with the will center, Jupiter with the creative center and the root corresponds to Saturn.
Symbols and creative expression (aka art) is an effective technique to communicate with the deepest parts of consciousness. Done with purpose and intention, a bridge can be established that enhances and encourages the natural process of integration.
The image above is a dramatized depiction between the earth, the heavens and the individual.
It shows a human form in an etheric egg with the energy centers depicted as circles. This is not a random human form, however, but a representation of a specific individual. Within each energy center is the astrological symbol of the person’s natal chart. For example, this person’s sun is located in Sagittarius, so the glyph of Sagittarius is in the crown center. This continues down to the root center (Saturn in Gemini, in this case).