Your Kua number - also written Gua - is one of the oldest practical tools in feng shui. Calculated from your birth year and gender, it tells you which of eight fundamental energy archetypes shapes your personal field and which compass directions either support or drain you. Unlike generic feng shui advice, the Kua system is individual: the direction that brings good fortune to one person is the same direction that depletes someone else.
What Is a Kua Number?
The Kua calculation comes from the Eight Mansions school of feng shui, a lineage that traces back at least a thousand years. The core idea is that each person carries a fixed energetic signature determined at birth. That signature belongs to one of eight trigrams from the I Ching system - ancient symbols built from combinations of broken and unbroken lines, each associated with a natural phenomenon: water, earth, thunder, wind, heaven, lake, mountain and fire.
Your Kua number is a single digit between 1 and 9, with 5 remapped to either 2 (men) or 8 (women) in the classical system. The number points directly to your trigram, your element and your life group.
East Group and West Group
Every Kua belongs to one of two groups:
- East Life Group - Kua 1, 3, 4 and 9. These numbers correspond to the trigrams Kan, Zhen, Xun and Li. East group people share four auspicious directions: North, South, East and Southeast.
- West Life Group - Kua 2, 6, 7 and 8. These numbers correspond to Kun, Qian, Dui and Gen. West group people share four auspicious directions: Northeast, Northwest, West and Southwest.
The groups also define compatibility between spaces and people. An East group person living in an East-oriented home tends to feel naturally supported. A West group person in the same home may feel like they are working against the grain without knowing why.
The Eight Directions and What They Mean
Each Kua maps all eight compass directions to one of eight "houses" - four beneficial and four to avoid:
Beneficial directions:
- Sheng Chi - your strongest direction for wealth, career and upward momentum
- Tian Yi - the healing direction, associated with health and trustworthy allies
- Nian Yan - the relationship direction, supporting love, family harmony and lasting bonds
- Fu Wei - the stability direction, for clarity, inner growth and calm decision-making
Directions to avoid:
- Huo Hai - minor mishaps and low-level friction
- Wu Gui - five ghosts: betrayal, deception and hidden opposition
- Liu Sha - six killings: legal trouble, resource drain, lost opportunity
- Jue Ming - total loss: the most adverse direction, linked to serious health and reputation setbacks
These mappings are fixed to your Kua number for life. What changes is how you apply them - through where you sleep, where you sit, how you orient your desk and which way your main door faces.
How to Use Your Kua Number
The Kua system does not require remodeling. Small adjustments produce real results:
1. Sleep direction - the direction your head points while sleeping is considered the most influential single factor. Aim for your Sheng Chi or Tian Yi direction first.
2. Work orientation - face your Sheng Chi direction at your desk for ambitious projects, or your Fu Wei direction for sustained focus and study.
3. Seating in meetings - sit so your back is to a wall and you face one of your four auspicious directions. This is a quiet adjustment no one else needs to know about.
4. Main door - if your front door faces your Sheng Chi direction, traditional feng shui considers this one of the most fortuitous configurations possible.
You cannot always control every direction in your environment. The approach is to optimize what you can, starting with sleep - where you spend roughly a third of your life.
