When you create your natal chart and learn to read it, one thing you may notice is if you have any planets conjunct the angles. This can be really important! Let's explore why planets conjunct the angles are.
What are the angles in astrology?
The angles refer to 4 positions, the Ascendant and Descendant, and the Imum Coeli and Midheaven. Depending on which house system you use, they may also be the 1st house cusp (Ascendant), 7th house cusp (Descendant), 4th house cusp (Imum Coeli), and 10th house cusp (Midheaven).
The Ascendant and Descendant exactly oppose one another in the Zodiac, and are the axis of relationships. They show how you connect with the self (Ascendant) and with others (Descendant). The Ascendant is your outer self, how you come across, while the Descendant is your relationships and the people in your life.
The Imum Coeli and Midheaven exactly oppose one another in the Zodiac, and are the axis of foundation, with the Imum Coeli ruling your internal foundation and the Midheaven ruling your external foundation. The emotional and personal, home and family fall under the Imum Coeli, while your goals, life direction, and professional life fall under the Midheaven.
The angles represent the 4 big pillars of your life: the self (Ascendant), the home/family (Imum Coeli), others/relationships (Descendant), and career/goals (Midheaven). The angles are also active positions, corresponding to the cardinal signs (Aries, Cancer, Libra, Capricorn), which are the signs of action. And conjunctions mean the planet is aligned with the angle (within a certain amount of degrees away), and conjunctions are amplified energy. All of this is why natal planets conjunct the angles are so important.
What do planets conjunct the angles mean?
Planets conjunct the angles have an elevated position in your life. Planets conjunct the Ascendant can dominate your personality, sometimes even more than your Sun sign. Planets conjunct the Imum Coeli can dominate your home and family life, and are strong indicators of your early life and emotional needs. Planets conjunct the Descendant can dominate your relationships, and are strong indicators of the kind of people you attract and the kind of relationships you have. Planets conjunct the Midheaven can dominate your career and life goals, and what you strive for in life can be directly tied to those planets, sometimes even more than your Midheaven sign.
When you have any planets conjunct the angles, that angle can be more important to you. You can be more concerned with personal development with planets conjunct the Ascendant; more concerned with a solid support system and healthy home life with planets conjunct the Imum Coeli; more concerned with having good relationships and doing more for others with planets conjunct the Descendant; and more concerned with achievement and recognition with planets conjunct the Midheaven.
This about what each planet rules. The Sun is your true self; the Moon is your emotional self; Mercury is your mind; Venus is your relationships; Mars is your energy; Jupiter is expansive; Saturn is restrictive; Uranus is unconventional; Neptune is spiritual; and Pluto is transforming.
If you have any planets conjunct the angles, pay attention to it! If you're uncertain how it plays out in your life, one clue can be when transit aspects occur to that planet and angle. The planet and angle will experience the same aspects by the transit (moving) planets in close proximity, and that can give you some ideas of how exactly they were together (especially under conjunctions).
Suggested Reading: Planets Square the Natal Imum Coeli & Midheaven