Discovering the "Ruling Planet" in Astrology
The ruling planet of the Ascendant zodiac sign is referred to as the lord of the chart. This is typically determined through classical methods involving the inner planets, though the outer planets like Uranus, Neptune, and Pluto should also be considered. (You can check your own natal chart.)
Modern psychological astrology tends to overlook the significance of the ruling planet, while ancient and medieval astrology valued the ruling planet as equal to, or even more important than, the Sun and Moon. Without the ruling planet, many aspects of life remain unexplained. In a natal chart, the ruling planet is akin to your "self." This planet (often one of the inner planets) has dual responsibilities: one is to represent your "self," and the other is the inherent nature of the planet itself—though it might bear even more responsibilities.
To discern specific traits and events in life, it's essential to study the house position, sign, and aspects of the ruling planet.
Broadly speaking, the Ascendant signifies the first impression we present to others. It accurately reflects a person’s appearance, physical traits, and overall form (although it does not include the eyes, which are associated with the Sun as they reveal the inner self). The Ascendant also conveys the first impression we make, making it a very formal aspect. For example, if someone has a Virgo Ascendant, they may appear neat and distinctive, albeit in a subtle way. However, this is merely a Virgo exterior; to understand the true traits behind this exterior, one should consider the Sun, Moon, and ruling planet. The Sun represents a person’s core identity and self-perception, essentially how one believes they should live to be acknowledged by themselves and others; the Moon conveys inner needs, security, and emotions. The Sun-Moon dynamic is similar to the necessity of working during the day and resting at night.
Regarding the ruling planet, it is closely linked to past experiences. In "The Trajectory of Life," Alejandra writes that the position of the Ascendant's ruling planet indicates the primary energy and field of experience driving you to act. While this can seem intricate, put simply, the ruling planet represents our "self," laden with past experiences and karma. In this life, it inevitably carries forward some past energy, immersing itself in a specific domain and interacting with various factors (other planets and houses) to shape current life experiences. The Ascendant serves as our outer shell, while the sign of the ruling planet reflects the true flow of energy beneath this exterior. Its significance rivals that of the Sun and Moon, yet the ruling planet often carries a fated quality, almost like a signature brand that follows us through life.
The planets, when serving as ruling planets, retain their own attributes but are uniquely marked. For instance, if someone has a Gemini Ascendant with Mercury as the ruling planet, it is crucial to examine Mercury's sign, house, and aspects. I once encountered a case where the Ascendant was in Gemini, with Mercury in the fourth house in Sagittarius, conjunct Neptune and opposing the Moon in Cancer. The aspect of Mercury conjunct Neptune and opposing the Moon in Cancer can lead to heightened emotional and erratic thinking, causing unrealistic interpretations of perceived changes and resulting in mental exhaustion. If Mercury were not the ruling planet, this aspect would merely present as a personality trait without intensifying it. However, as Mercury is the ruling planet, this aspect becomes a significant life factor, causing auditory hallucinations and obsessive thinking. Due to Mercury and Neptune being positioned in the fourth house, these hallucinations aggravate a sense of insecurity, leading this person to isolate themselves at home.
Another friend of mine has Venus as their ruling planet, with Venus in the seventh house in Scorpio, accompanied by Mars. Although he is a generous and bold Sagittarius with friends, he finds it challenging to live alone. Due to Mars's close conjunction with his ruling Venus, he tends to be overly critical in relationships, caring for others in a way that can feel stifling. As a result, he is very emotional and continuously seeks companionship, but often ends up alienating them, which is a particular issue he needs to address in this life. I have two more friends, one with Mars as the ruling planet in the twelfth house in Scorpio and the other with Mars in the twelfth house in Libra. Both have tendencies to escape from reality and exhibit relatively negative attitudes. However, one has Mars in a strong position while the other has it in a weaker one, leading to different energy expressions; one can endure solitude with patience, while the other lacks patience and needs companionship.
If the ruling planet resides in a challenging house and is afflicted by malefic planets, one may face obstacles or setbacks in life. By examining the ruling planet's house position, along with the positions of Saturn and other planets, many questions can be illuminated. If the ruling planet is accompanied by benefic planets, we may find particular success in certain areas, especially if the ruling planet is Jupiter. Conversely, if the ruling planet is Saturn, areas represented by its house may require additional effort or become more taxing.
The sign of the ruling planet represents our specific life energy. It suggests that the characteristics of the planet itself are enhanced by its sign, while the house represents a significant area that we must confront in this life. The aspects of the ruling planet reveal more detailed traits and connections to other areas of life.
Astrology places great emphasis on celestial bodies and elements that portray a person’s unique essence, with the Ascendant and ruling planet holding this distinction, as they are the most sensitive to time. Two individuals born on the same day can have entirely different destinies, often due to this aspect.
In classical astrology, the ruling planet is viewed as a divine guide appointed by the heavens to oversee a person's life path. A person's overall pattern is generally assessed through their Sun, Moon, and ruling planet, based on the nature of the house they occupy (angular, succedent, cadent) and their interactions with benefic and malefic planets. However, this should not be seen as absolute, as life is full of variations. Some individuals navigate life smoothly, while others rise from modest beginnings to achieve great success; some are born into wealth only to squander it and face downfall. By using the Sun, Moon, and ruling planet as a central axis and broadening from there, the truths of life gradually unfold.