Everything you need to understand your birth chart and the language of astrology. From planetary meanings to aspect patterns, explore the building blocks of astrological interpretation.
An astrology library is a structured reference covering the core building blocks that make up every birth chart: planets, zodiac signs, houses, aspects, elements, and modalities. Together, these six categories form the language of astrology. The AstroMood Astrology Library contains over 400 reference pages spanning all six categories — including 120 planet-in-sign interpretations, 120 transit-through-house analyses, and 78 zodiac compatibility pairings, making it one of the most comprehensive free astrology resources available online.
Planets represent fundamental drives — the Sun governs identity, the Moon rules emotions, Mercury shapes communication, Venus influences love, and Mars directs energy. Zodiac signs modify how those drives express themselves: Mars in Aries is direct and impulsive, while Mars in Libra seeks harmony. Houses determine where in life these energies manifest — the 7th house governs partnerships, the 10th house rules career, and the 4th house represents home and family.
Aspects are angular relationships between planets that create harmony (trines, sextiles) or tension (squares, oppositions). Elements — Fire, Earth, Air, and Water — group signs by temperament, while modalities — Cardinal, Fixed, and Mutable — describe how signs initiate action. Understanding these interconnected systems is essential for reading any natal chart, synastry comparison, or transit forecast accurately.
In astrology, the 10 planets (including the Sun and Moon, traditionally called 'luminaries') represent different energies and life themes. Personal pl...
The 12 zodiac signs form the foundation of Western astrology. Each sign has a ruling planet, belongs to an element (Fire, Earth, Air, Water) and a mod...
The house system divides the sky into 12 sections at the moment of your birth. Each house governs specific life themes. Planets in a house influence t...
Aspects are measured in degrees around the zodiac wheel. Each aspect has an orb (allowable deviation) for it to be considered active. Major aspects ar...
Every zodiac sign belongs to one of four elements, and every planet in your chart occupies an element. A heavy Fire chart is action-oriented; heavy Ea...
The three modalities divide the 12 signs into three groups of four. Each modality includes one sign from each element, creating a complete approach to...
In astrology, transits occur when a planet moving in the sky makes contact with a point in your natal chart. These moving planets act as triggers, act...
While the natal chart is the foundation, astrology uses many specialized chart types. Relationship charts (synastry, composite) compare two people. Pr...
Astrological symbols are more than abbreviations—they're pictographic representations of cosmic principles. Planet glyphs often combine circle (spirit...
Start with planets to understand core energies, then explore how signs modify their expression.
Houses show where energies manifest. Aspects reveal how planets interact and create patterns.
Use this knowledge to interpret natal charts, transits, and relationship compatibility.