Of the Ten Factors, Unity refers to the non-duality of all phenomena despite their differing aspects. Even though all phenomena can be distinguished due to the differences between them in the other nine factors, they are all united and equal in that they are all empty and temporary manifestations of Dependent Origination. Again, this means that even though each of the Ten Worlds from hell­-dweller to Buddhahood seems radically different from one another, in actuality they are all a part of the same life process and cannot be separated from one another. Because of this unity, the Ten Worlds mutually posses one another. Because of the mutual possession of the Ten Worlds, all beings are embraced by the Buddha and the Buddha-nature can reside within all beings.