四大轴点详解 - 上升、下降、天顶与天底

Interpreting the four most significant sensitive points in a birth chart. The Ascendant (ASC) as the mask, the Descendant (DSC) as the partner, the Midheaven (MC) as career, and the Imum Coeli (IC) as roots.

Four Angles of the Chart
ASC

Ascendant

The ASC
Definition

The precise degree of the zodiac intersecting the Eastern Horizon at the exact moment and location of birth. It marks the cusp of the 1st House.


Symbolism

The ASC represents the 'Mask' we wear and our spontaneous method of engaging with the world. It signifies our physical appearance, demeanor, and the initial filter through which we perceive and interpret reality.

Psychological Aspect

Psychologically, the Ascendant is the mechanism of the ego's birth. It represents the awakening of self-consciousness and the specific style of survival strategy adopted by the individual to navigate their environment safely.

Core Keywords (Keywords)
Self-Image Persona Physical Vitality First Impressions The Lens
MC

Medium Coeli

The MC
Definition

The highest point of the ecliptic above the horizon at the time of birth, representing the intersection of the Meridian and the Ecliptic. It marks the cusp of the 10th House.


Symbolism

The MC symbolizes our highest aspirations, professional path, and reputation. It is where we are most visible to the public and represents the outcome of our striving for social standing.

Psychological Aspect

The MC reflects the drive for individuation through societal contribution. It represents the internalized 'superego' or the authority figure, and how the individual seeks to be validated, respected, and remembered by the collective consciousness.

Core Keywords (Keywords)
Career Public Status Ambition Authority Legacy
DSC

Descendant

The DSC
Definition

The point of the zodiac intersecting the Western Horizon, exactly opposite the Ascendant. It marks the cusp of the 7th House.


Symbolism

The DSC represents the 'Other.' It governs committed one-on-one relationships, business partnerships, and legal contracts. It reveals the qualities we lack in ourselves and therefore seek in others.

Psychological Aspect

This is the realm of psychological projection. The Descendant holds the disowned or unconscious parts of the self (the Shadow) that we are attracted to externally. We compel partners to act out these traits to help us achieve psychological wholeness.

Core Keywords (Keywords)
Partnership Projection The Other Marriage Open Enemies
IC

Imum Coeli

The IC
Definition

The lowest point of the ecliptic below the horizon, exactly opposite the Midheaven. It marks the cusp of the 4th House.


Symbolism

The IC represents our private life, domestic environment, family heritage, and the literal and metaphorical ground we stand upon. It is the place of retreat and recharging.

Psychological Aspect

The IC is the seat of the unconscious and the emotional past. It signifies the deepest, most vulnerable sense of self and psychological security. It represents the 'inner child' and the nurturing conditions required for the soul's growth before it can face the world at the MC.

Core Keywords (Keywords)
Roots Home Ancestry Inner Foundations The Unconscious
Catalog
Astrology Tips

The four cardinal angles form the backbone of the birth chart. The Ascendant (ASC) determines the ruling planet, serving as a crucial entry point for interpreting the entire chart. The Midheaven (MC) represents our highest achievement goals on the social stage.