One verse

Srimad Bhagavatam 11.22.12

11.22.12

प्रकृतिर्गुणसाम्यं वै प्रकृतेर्नात्मनो गुणा: । सत्त्वं रजस्तम इति स्थित्युत्पत्त्यन्तहेतव: ॥ १२ ॥

prakṛtir guṇa-sāmyaṁ vai prakṛter nātmano guṇāḥ sattvaṁ rajas tama iti sthity-utpatty-anta-hetavaḥ

prakṛtiḥ
material nature
guṇa
of the three modes
sāmyam
the original equilibrium
vai
indeed
prakṛteḥ
of nature
na ātmanaḥ
not of the spirit soul
guṇāḥ
these modes
sattvam
goodness
rajaḥ
passion
tamaḥ
ignorance
iti
thus called
sthiti
of the maintenance of universal creation
utpatti
its production
anta
and its annihilation
hetavaḥ
the causes

Nature exists originally as the equilibrium of the three material modes, which pertain only to nature, not to the transcendental spirit soul. These modes — goodness, passion and ignorance — are the effective causes of the creation, maintenance and destruction of this universe.