पुरुषः प्रकृतिस्थो हि भुङ्क्ते प्रकृतिजान्गुणान् ।
कारणं गुणसङ्गोऽस्य सदसद्योनिजन्मसु ।। १३.२१ ।।

puruṣaḥ prakṛti-stho hi bhuṅkte prakṛti-jān guṇān |
kāraṇaṁ guṇa-saṅgo’sya sad-asad-yoni-janmasu || 13.21 ||

Purusha is beyond matter and energy. It is transcendent and so is not subject to any kind of change or transformation. Yet, in conjunction with the ever-changing prakrti, purusha displays a variety of qualities and fates caused by prakrti. In the process, purusha falls into a fate of identity with prakrti, which in turn, results in taking birth in good and bad wombs (13.21).