The Law of Three is also called "Triamazikamno" and is described by Gurdjieff as "the second fundamental cosmic law".
The law states that every whole phenomenon is composed of three separate sources, which are Active, Passive and Reconciling or Neutral. This law applies to everything in the universe and humanity, as well as all the structures and processes.
The Three Centers of in a human, which Gurdjieff said were the Intellectual Centre, the Emotional Centre and the Moving Centre, are an expression of the law of three.
Gurdjieff taught his students to think of the law of three forces as essential to transforming the energy of the human being. The process of transformation required the three actions of affirmation, denial and reconciliation.