A step-by-step walkthrough of how Korean Saju converts your birth date into a Five Element profile, and how that profile translates into a personalized set of resonant lottery numbers.
When you enter your birthday into a Saju-based lottery number service, a multi-step calculation transforms a simple date into a personalized elemental profile. This is not a lookup table or random assignment — it follows a deterministic process rooted in the 60-element sexagenary cycle (육십갑자, 六十甲子) that has governed Korean time-keeping and divination for centuries. Understanding this process helps you interpret not just your numbers, but the reasoning displayed alongside them.
Step one is converting your birth year into a Heavenly Stem and Earthly Branch pair using the sexagenary cycle. Every year in the repeating 60-year cycle has a fixed combination: for example, 1990 is 庚午 (Geng-Wu — Metal Horse), and 1985 is 乙丑 (Yi-Chou — Wood Ox). The Heavenly Stem of your birth year carries one element (Metal, in 1990's case), contributing to the Year Pillar's elemental energy. The Earthly Branch also carries an element through its associated Zodiac animal and hidden stem structure.
Step two repeats for the Month Pillar. Your birth month maps to one of twelve Earthly Branches (each corresponding to a 30-day solar period), and the Month Heavenly Stem is derived from the Year Stem using a fixed formula. The Month Pillar often has the strongest seasonal elemental influence — birth in spring months (寅·卯·辰 — roughly February through April) brings strong Wood energy, summer months bring Fire, autumn brings Metal, and winter brings Water.
Published: 2026-02-24
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