The most important number in your Numerology chart is your Life Path number, based on the date of your birth. Your Life Path number reveals a broad outline of the opportunities, challenges and lessons you will encounter during this lifetime.
First, reduce each unit of your birth date (month/day/year) to a single-digit number or a Master number (Master numbers are 11, 22 and 33). Next, add each of the resulting digits (or Master numbers) together and reduce the total again to a single digit, or a Master number.
For example, if you were born on October 12, 1936, you would calculate your Life Path as follows:
Month: October is the 10th month of the year. 10 reduces to 1 (1 + 0 = 1).
Day: The date of birth is 12. 12 reduces to 3 (1 + 2 = 3).
Year: The year of birth is 1936. 1936 reduces to 1 (1 + 9 + 3 + 6 = 19, then 1 + 9 = 10 and finally 1 + 0 = 1).
Now add the resulting single-digit numbers: 1 + 3 + 1 = 5.
The Life Path number in this case is 5.
The reason the method mentioned here is the only correct method is because it is the only one that acknowledges the Life Path as a cycle, one that runs from birth to death and interacts with the other numerological cycles of your life.
Your Period cycles are three long-term cycles that each cover about a third of your life. The First Period cycle is based on the reduced number of your month of birth, the Second Period comes from your reduced day of birth and the Third Period comes from your reduced year of birth. Therefore, your all-encompassing Life Path number is not a matter of simply adding up the numbers that appear in your birth date, but is actually derived from the numbers that make up your three Period cycles.
Think of it this way: Those who blindly add numbers randomly without understanding the integrated nature of the whole are like spiders who have lost touch with the brilliant architecture of their webs, and are now just stringing lines here and there randomly, creating only chaos and confusion.