There are a couple of different methods for calculating your Tarot birth cards (personality, soul and shadow) but I'll describe the method Mary K Greer uses, and that you can read more in-depth about in the superb book Tarot for your Self.*
Example: 13th of April, 1975
You then add each digit in the sum: 1+9+9+2=21, keeping any number from 1-22.
In this example, 21, The World, is your personality card. As this is a double digit number, you can reduce it further to a single digit number by adding 2+1=3. 3, The Empress, is your soul card.
If the sum is greater than 22, you reduce the digits until you have a smaller number. If the sum then becomes a single digit number, the personality card and the soul card are one and the same.
In one instance, a person can have more than two personality cards, and this happens when the sum is 19. Cards 1, 10 and 19 then all become both personality and soul cards.
Number 22 corresponds to 0, the Fool, with number 4, the Emperor as the soul card. According to Mary K Greer, these two cards also work more as a unit rather than as a separate soul and personality cards.
In the table below, you will find some key words for each numerological constellation, and also see which card is your Hidden Factor or Shadow Card. The term "Shadow" here is used in the Jungian sense to refer to those aspects of ourselves that we'd rather keep in the subconscious and therefore tend to project onto others.
|Personality & Soul Card Patterns||Hidden Factor,|
|10 + 19|
(Sun, Wheel of Fortune, Magician)
|Will and Focused Consciousness|
|11 + 20|
(Judgment, Justice, H.P.)
|Balanced Judgment through Intuitive Awareness|
|12 + 21|
(World, Hanged Man, Empress)
|Love and Creative Imagination|
|13 + 22|
(Fool, Death, Emperor)
|Life Force and Realisation of Power|
|Teaching and Learning|
|Relatedness and Choice|
|Mastery through Change|
|Courage and Self-Esteem|
|Introspection and Personal Integrity|
The Personality Card tells you how you tend to respond to others based on past experience, as well as how others perceive you (roughly corresponding to your Zodiac Rising Sign). The Soul Card describes your inner drive and motivation, roughly corresponding to the Soul urge in a Numerology reading.
Do a reading with your Birth cards to find out what lessons they are currently bringing into your life.
Calculate your Tarot Year card.
*I have been told that this method is older than the book and does not originate with Ms Greer. If anyone can confirm the origins, I would be very grateful