Greater As Astrologer or the Greatest
First of all, let’s notice the shortcut of language contained in the question as it is posed. Obviously, it is not the zodiacal signs that can have an impact on our behaviors because the sign is a language convention, an image, a representation of a much more complex reality: that of the astronomical real, of a geo-planetary environment.
With which the living is in relation
An Astrology Character Reading Consultation Session speaks of this relationship, because its basic assumption is that man, living in a general way, is not cut off from his immediate environment (his family, his culture) and far away (the climate up to to the planetary rhythms of the solar system). There is an adaptive type relation and studying astrology is thus interested in this relation of adaptation between the man and his birth sky (mean by this, the specific spacio-temporal configuration which seems to act as an important marker in the development of the human psyche). From the Best Astrologer in Delhi this is important now.
What is a zodiac sign?
It is a rhythm or more precisely the phase of a cycle of variations of the day-night signal. Indeed throughout the year the proportion of days and nights fluctuates with the seasons. It is a phenomenon called photoperiodism by scientists and zodiac by astrologers! Astrologers have seriously taken this alternation of days and nights well before scientists in the modern era. They noticed that these phases influenced the construction of the character of a person, hence the zodiacal typology that everyone knows by opening his journal.
A person born for example, under the sign of Aries will be marked by a day-night signal equality. In the jargon of the conditionalist astrology, the influence of this phase is characterized by a “sense of opposites” very marked among the natives of Aries. They perceive more than others in their environment contrasts and tend to oppose what is different or to assert themselves by opposing, in short to reason in terms of opposite or pair of opposites. As a famous example, the philosopher Descartes (with 5 planets in the sign of Aries) is known for his body-mind dualism.
Why are these phases represented by animals or symbols?
Consider the sign of Cancer symbolized by a crayfish: this animal walks backwards, it will symbolize the decline of the day that has just reached its maximum duration. Indeed the sign of Cancer is marked by the passage of the sun to its maximum height in the celestial sphere. In Cancer the sun begins its march “back”, its height decreases! Is this not a relevant symbolism? Another example: for the sign of Libra (the sun enters it on September 21), the plateaus represent the return to the day-night equinox equilibrium of autumn when the sun enters this sign.
This is on the side of the description of the underlying astronomical phenomenon. But this zodiacal symbolism also illustrates the associated human behaviors. The natives of Libra (and its balanced plateaus) are known for their interpersonal skills, in short their ability to adroitly link what seems irreconcilable (like day and night!).

