Bhagavad Gita Chapter 13, Verse 22

पुरुषः प्रकृतिस्थो हि भुङ्क्ते प्रकृतिजान् गुणान् | कारणं गुणसङ्गोऽस्य सदसद्योनिजन्मसु ||

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

The enjoyer, situated in material nature, experiences the qualities born from material nature. Attachment to qualities is the cause of birth in good and bad wombs.

Krishna explains how the knower experiences the field. 'Puruṣaḥ prakṛti-stho hi bhuṅkte prakṛti-jān guṇān'—the enjoyer, situated in material nature, experiences the qualities born from material nature. The knower is in the field, experiencing the field's qualities. 'Kāraṇaṁ guṇa-saṅgo 'sya sad-asad-yoni-janmasu'—attachment to qualities is the cause of birth in good and bad wombs. When the knower is attached to the field's qualities, it gets bound to the field. This attachment causes rebirth—the knower takes birth in different forms based on its attachment to qualities. When you understand this, you recognize that attachment to the field's qualities binds you to the field. Non-attachment to qualities liberates you from the field. The knower experiences the field, but attachment to the field's qualities creates bondage. Freedom comes from experiencing without attachment.