All phenomena constitute dharmas. Because dharmas possess a particular characteristic they constitute a singularity. In this same fashion there are an incalculable number of entry points to singularity. When one refutes the characteristic of difference but still does not become attached to singularity, this constitutes patience with respect to dharmas. Moreover, the bodhisattva contemplates everything as being dual.
Duality refers to the characteristic of having a subject and an object.
Because it is characterized by the presence of a subject and object, it is not the case that the subject is characterized by being the object and it is not the case that the object is characterized by being the subject. Then again, because all dharmas are characterized by existence and non-existence, they are dual. There are an incalculable number of access points to duality. Then again, the bodhisattva may contemplate all dharmas as being tripartite. In this same fashion there are an incalculable number of access points to triplicity.