In the Book of the Law though the words will, wilt, and Thelema are used, the words "True Will" never appear, though these words are often used elsewhere in Thelemic literature and discourse to indicate the very specific and essential meaning of the word will in Thelema.
The alternate phrase "pure will" is used in the Book of the Law and is referred to as being "in every way perfect." (AL I:44)
Reinforcing the idea that this pure will unites the self with the not self, the following line of the Book says;
- The Perfect and the Perfect are one Perfect and not two (AL I:45)