They consist of the Life Path number, the Expression number, the Heart’s Desire number, the Personality number, and, after age thirty-five, the Maturity number.

Cornerstone: The Cornerstone is the first letter of the first name as it was given at birth.

Current name (also called the short name): The current name is the name one uses to introduce oneself, including the last name.

(Middle initial, titles, or extensions such as Jr. or the III are not used.)

Essence Cycle: The Essence Cycle can last from one to nine years,

and is based on the combination of Transits that are in place during any given year.

Expression number: The Expression number is the sum of the numerical value of all the letters in the full name as it was given at birth.

First Challenge: The First Challenge is the difference between the single-digit numbers that represent the month and the day of birth.

Fourth Challenge: The Fourth Challenge is the difference between the single-digit numbers that represent the month and the year of birth.

Heart’s Desire number: The Heart’s Desire number,

sometimes called the Soul urge number, is the sum of the numerical value of all of the vowels in the full name as it was given at birth.

Hidden Passion number: The Hidden Passion number is the number that is represented more often than any other number in the full name, as it was given at birth. A name may reveal more than one Hidden Passion number.

Karmic Debt numbers: The Karmic Debt numbers are the numbers 13, 14, 16 and 19.

Karmic Lesson number: A Karmic Lesson number is a number that is not represented anywhere in the full name as it was given at birth. A name may reveal more than one Karmic Lesson number.

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