 The text in verse 12 states that the three Guṇa (qualities), that is sattva, tamas and rajas, respectively correspond to pleasure, pain and dulness, mutually domineer, produce each other, rest on each other, always reciprocally present and work together.This Samkhya theory of qualities have been widely adopted by various schools of Hinduism for categorizing behavior and natural phenomena.Verses 13-14 state that Sattva is good, enlightening and illuminating, Rajas is urgent, motion and restless, while Tamas is darkness, obscuring and distressing; these work together in observed nature just like oil, wick and fire together in a lamp.