Tian Yi in Eastern Numerology: What 13 and 31 Mean
In Eight Mansions feng shui, Tian Yi is the Ju Men star. Eastern Numerology ties it to steady income, a quick mind, kindness and stable relationships, and it is often the most sought-after star. This page covers the eight pairs of Tian Yi and their strength, its place in the Eight Mansions, the traditional reading, and how it interacts with the other stars.
The eight pairs of Tian Yi
Tian Yi has eight pairs. Common tables rank them into four strength levels, two pairs each; the two pairs on a level are the same digits in reverse order (for example 13 and 31) and carry the same weight.
| Strength level | Pairs | Trigrams (directions) |
|---|---|---|
| Level 1 | 13, 31 | Kan–Zhen (north–east) |
| Level 2 | 68, 86 | Qian–Gen (northwest–northeast) |
| Level 3 | 49, 94 | Xun–Li (southeast–south) |
| Level 4 | 27, 72 | Kun–Dui (southwest–west) |
Each digit in a pair is a Lo Shu number tied to one trigram. Matching the two trigrams by the Eight Mansions “Great Wandering Year” method gives Tian Yi, which is why Tian Yi is always exactly these eight pairs.
Does your number contain Tian Yi? Eastern Numerology calculator →
Tian Yi in the Eight Mansions
In Eight Mansions feng shui, Tian Yi is the Ju Men star. Eastern Numerology ties it to steady income, a quick mind, kindness and stable relationships, and it is often the most sought-after star.
In the Eight Mansions system, Tian Yi is one of the eight directions, matched to the nine-star name Ju Men (Giant Door), and one of the four favorable stars. Eight Mansions reads directions for people and houses; Eastern Numerology borrowed the same pairing to read numbers. The two share star names, but each developed its own readings.
What Eastern Numerology says about Tian Yi
The following is the tradition’s view, summarized as it is commonly taught; it is not a tested finding.
Strengths often mentioned
- Clear-headed and quick to learn
- Kind and willing to look after others
- Associated with regular income in Eastern Numerology
- Read as steady and committed in relationships
Tendencies to watch
- Trusts too easily and can be taken advantage of
- Puts other people first and their own needs last
- Straightforward thinking can lose out in complicated deals
How Tian Yi works with the other stars
In the balancing rhyme Tian Yi “overrides Jue Ming”: a number with Jue Ming is paired with Tian Yi. Tian Yi is also needed to settle Wu Gui.
When Tian Yi is followed by Fu Wei (for example 133), the Fu Wei carries Tian Yi forward, which amounts to one more Tian Yi pair.
How common Tian Yi is in real numbers
With a fixed random seed we generated 200,000 Taiwanese mobile numbers starting with 09. Tian Yi makes up 12.3% of all pairs, 57% of numbers contain at least one Tian Yi pair, and about 13.6% of numbers have Tian Yi as their most common star (ties split). Apart from Fu Wei, all seven stars sit at about 12% of pairs, so Tian Yi is neither rare nor especially common.
To see whether your own number contains Tian Yi and at what level, use the Eastern Numerology calculator with a phone, plate or ID-style number.
The other seven stars
Does your number contain Tian Yi?
Enter a phone, plate or ID-style number to see every pair, the dominant star, and whether each unfavorable star has a favorable partner. Calculated on your device only.
Tian Yi in Eastern Numerology: FAQ
Which pairs are Tian Yi?
13, 31, 68, 86, 49, 94, 27 and 72. Common tables rank 13 and 31 the strongest and 27 and 72 the weakest.
Does Tian Yi really mean money?
That is how Eastern Numerology reads it: Tian Yi is linked to regular income. Real income depends on work, skill and timing, so we treat the number as a talking point, not a promise.