Bhagavad-gītā As It Is · Text 13.21
Prakṛti, puruṣa and conditioning
कार्यकारणकर्तृत्वे हेतु: प्रकृतिरुच्यते ।
पुरुष: सुखदु:खानां भोक्तृत्वे हेतुरुच्यते ॥ २१ ॥
kārya-kāraṇa-kartṛtve
hetuḥ prakṛtir ucyate
puruṣaḥ sukha-duḥkhānāṁ
bhoktṛtve hetur ucyate
Nature is said to be the cause of all material causes and effects, whereas the living entity is the cause of the various sufferings and enjoyments in this world.
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