1. Tiange: compound surname, total the strokes of the surname; single surname, add a false number to add a number. For example, Sima Guang, Sima has a compound surname, and the natural pattern is 5+10=15; Li Gang, Li has a single surname, and the natural pattern is 7+1=8. The sky grid is left behind by our ancestors, and its mathematical principles have little influence on people.
2. Personality, also known as "main destiny", is the center point of the entire name. A person's destiny in life is inferred from this personality. Its composition is the sum of the number of strokes of the lowest character of the surname and the uppermost character of the first name. For example: Liu Jiang’s personality number is 15+7=22. Sima Yi’s personality number is 122=32.
3. Ground pattern: It consists of the number of strokes in the name, which is called "Qian Luck" and is in charge of a person's activity before middle age. If it is a one-character name, add a false number and a number. For example, Sima Yi's ground number is 22+1=23. Liu Jianghai, the grid number is 7+11=18.
4. Total strokes: The total number of strokes in the surname and first name indicates the destiny from middle age to old age, also known as "luck in the future". For example, Sima Yi, the total number of squares is 5+122=37. Liu Jianghai, the total number of cells is 15+7+11=33.
5. External case: the total number of strokes in the case minus the number of personality strokes. If it is a single-character name or a single surname, add the additional number. The spiritual power in charge of destiny. For example, Sima Yi's outer square number is 37-32+1=6. Liu Jianghai, the outer number is 33-22+1=12.