The Lo Shu Grid is a traditional numerology tool. We take every digit in your date of birth (ignoring zeros) and place each one onto a fixed 3x3 grid. Digits that repeat show up more than once in their cell; digits that never appear are your "missing numbers".

Your Driver Number comes from just your day of birth, reduced to a single digit. Your Conductor Number comes from your entire date of birth, reduced the same way.

A row, column, or diagonal where all three numbers are present is called an "arrow" in traditional numerology; one that's completely empty is a "missing arrow". Because a date of birth only has 8 digits in total, every reading will always have at least one missing number - that's expected, not unusual.

Each cell is also shown with its traditional ruling planet, from the same number-to-planet correspondence used in Chaldean and Vedic numerology (1=Sun, 2=Moon, 3=Jupiter, 4=Rahu, 5=Mercury, 6=Venus, 7=Ketu, 8=Saturn, 9=Mars) - this mapping is fixed and doesn't depend on your date of birth.