The law of nature through which action is accomplished, by means of three forces. The active principle is the positive pole, the passive principle is the negative pole, and the principle that conciliates both is the third force, the neutral force. The Law of Three is formed then by the three principles: Holy Affirmation, Holy Negation, and Holy Conciliation. The third force conciliates the affirming force with the negating force. This profound law is represented in all religions by a trinity of powers.
"Holy-Affirming, Holy-Denying, Holy-Reconciling, Transubstantiate in me, For my Being." - Gurdjieff, Beelzebub's Tales to his Grandson (1949)
"...this Sacred-Triamazikamno consists of three independent forces, which are called: the first, 'Surp-Otheos'; the second, 'Surp-Skiros' the third, 'Surp-Athanotos'; which three holy forces of the sacred Triamazikamno the said science calls as follows: the first, the 'Affirming-force' or the 'Pushing-force' or simply the 'Force-plus'; the second, the 'Denying-force' or the 'Resisting-force' or simply the 'Force-minus' and the third, the 'Reconciling-force' or the 'Equilibrating-force' or the 'Neutralizing-force'." - Gurdjieff, Beelzebub's Tales to his Grandson (1949), 4203 XXXIX
'A new arising from the previously arisen through the "harnel-miatznel," the process of which is actualized thus the higher blends with the lower in order together to actualize the middle, and thus to become either higher for the preceding lower or lower for the succeeding higher. - Gurdjieff, Beelzebub's Tales to his Grandson (1949)
"The creative process of the Sacred Cosmic Common Triamatzikamno was initiated with the sexual marriage of the Word because in the beginning was the Word, and the Word was with God, and the Word was God. Because of Him all things were made and without Him nothing that was made would have been made." - Samael Aun Weor, The Esoteric Treatise of Hermetic Astrology