A horoscope represents a snapshot of the sky at the moment of birth. The planets and signs are symbols, while the houses represent areas of life. By reading the placement of the planets in signs and houses, and the interactions of planets with each other, it is possible to discern character strengths and weaknesses. The chart helps explain why a person is the way they are, and why they do what they do. To the extent a person is aligned with the energy of their chart, there is happiness. The opposite is also true. An understanding of astrology helps people achieve the wisdom of the words on the entrance the Oracle of Delphi: Know Thyself.