Everybody gets to play everyone on the wheel of life and its all based on spatial and compositional criteria. In Astrology the eternal circle or rather spiral is composed or divided into twelve equal sections or spatial areas, each with its particular energy or composition.
Space one begins it all and is what gives Aries its initiatory nature. Space two concretizes the actions of space one and is what gives Taurus its solid or earthy nature, and so on. It is the space or sequence which gives a sign its quality or nature and the same principle applies for numerology. This means, for example, that whatever occupies space five or is fifth in sequence, for example, will have the nature of Leo.
Every sign is equally important in Astrology and plays its particular role according to its position or space in the zodiac. Every sign also has a special role in relation to every other sign. This also is determined by spatial sequence or configuration or "aspect" as it is termed in astrology. Every sign plays an equal, superior, or subordinate role to some other sign, without exception.
Below is a table showing the role each sign plays with each other sign. This can be on a Sun sign level, Moon sign level, or any other mutual or inter-functional comparison.