This philosophy is available at Monk level 3 by selecting the Fists of Light feat, which serves as the key to using any special key attacks connected to this path.
The Path of Harmonious Balance philosophy gives access to the Ki attacks Hand of Healing and Fists of Light from Shintao, Shadow Flurry from Ninja Spy and Kata of Wind from Henshin Mystic. On Monk level 10 and selection of the tier five Henshin Mystic enhancement Balance in Dawn, a fifth Ki attack, Every Light Casts a Shadow, becomes available. (Dragon Disciples only get access to Hand of Healing, Fists of Light and Flash Bang.)
You may only choose one philosophy. While players may see the moves from the Path of Inevitable Dominion in their Feats list, the player cannot activate actions in this path without using a feat exchange to switch to the Fists of Darkness.