The formula is explained in detail in the book. You will need a list of mnemonics, one is assigned for each letter that describes the power inherent in each letter.
Once familiar with the quiddity of letters you will look at the initiating component of a word and follow it through to see where it is going. Imagine the word as a flow of unformed energetic expression. The first letter informs the whole word to come, each letter then impacts the next sequentially. The last letter of the word describes the final nature of expression, the destination. When either Dd or Tt are the final letter there is completion.
In the book you will find how to deal with double letters (letters are packets of information) and decode the embedded message of each word. You will discover the special power of the vowels. The vowels are the activators.