Alaya (アラヤ, Araya) is the collective unconsciousness of mankind and the drive for its survival as a whole. Alaya constantly steers mankind away from extinction.
Usually Alaya interferes indirectly by guiding and empowering an individual to eliminate a threat. Such individuals include Shiki Ryougi and nearby individuals. When indirect intervention is insufficient, Alaya will deploy the Counter Guardians or Heroic Spirits. The deployment of Counter Guardians is by no means subtle, as the threat will be eliminated with the surroundings, inflicting much collateral damage. Touko Aozaki hinted that the sinking of Atlantis was the work of Alaya, though her theory was actually incorrect, as Atlantis was orignally destroyed by Sefar.
Alaya is of particular relevance to magi, as those close to reaching the Root are deemed threatening by Alaya. Many of them go to extreme lengths to avoid or hide from Alaya. For instance, Araya Souren attempted to hide his approach to the Root by containing his experiment in a boundary field close to a Reality Marble, essentially masking his work by internalizing it.
Human Order (人理, Jinri, localized as "Humanity"), also referred to as the 'Common Sense of Man' (人理, Jinri, lit. "Human Principle"), is the core principle on which Alaya operates for the building of the Human Order Foundation. Essentially, it is the principle that "humanity must exist for as long as possible." Parallel worlds in which humanity has destroyed itself or advanced too quickly and therefore stopped progressing are, following this principle, culled, allowing for only the most promising parallel worlds to survive in order to ensure the future of mankind.