Sankhya Karika Verse 13
Sanskrit Verse
सत्त्वं लघु प्रकाशकमिष्टमुपष्टम्भकं चलं च रजः । गुरु वरणकमेव तमः प्रदीपवच्चार्थतो वृत्तिः ॥ १३ ॥
Transliteration
sattvaṃ laghu prakāśakam-iṣṭam-upaṣṭambhakaṃ calaṃ ca rajaḥ | guru varaṇakam-eva tamaḥ pradīpavat-ca-arthataḥ vṛttiḥ ||
Translation
Sattva is considered to be light and illu minating, and Eajas, to be exciting and restless, and Tamas, to be indeed heavy and enveloping. Like a lamp (consisting of oil, wick, and fire), they co-operate for a (common) purpose (by union of contraries).
Reference: Sankhya Karika

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