The Unmanifest is called Kshetra, understanding, and also the supreme Lord; while Purusha, which is the twenty-fifth principle has nothing superior to it and is not a principle.
अव्यक्त क्षेत्रमित्युक्तं तथा सत्त्वं तथेश्वरः। अनीश्वरमतत्त्वं च तत्त्वं तत् पञ्चविंशकम्॥