Progressions are a mathematical way of moving the planets in your chart. Progressions show the subtle, inner, and psychological influences that influence you as you grow through life experiences. There are several methods for doing this, but the most common is called Secondary Progressions. The idea is that you take on different ‘flavors” as you grow older. A person who was born on the first day of Sagittarius would have a Sagittarian influence for the first thirty years of life. During the second thirty years of life, she or he would still be a Sagittarius. However, she or he would take on a Capricorn influence. This would flavor the adventurous Sagittarian energy with the pragmatic grounding of Capricorn. The easiest way to understand these changing influences is to schedule annual updates with a competent astrologer.