कार्यकरणकर्तृत्वे हेतुः प्रकृतिरुच्यते ।
पुरुषः सुखदुःखानां भोक्तृत्वे हेतुरुच्यते ।। १३.२० ।।

kārya-kāraṇa-kartṛtve hetuḥ prakṛtir-ucyate |
puruṣaḥ sukha-duḥkhānāṁ bhoktṛtve hetur-ucyate || 13.20 ||

Experiences in the form of pleasantness and unpleasantness, sukha and duhkha, belong to purusha (13.20). Materiality has no power to cause experiences. Purusha’s glory alone acts in bringing about experiences.