A term of Sankhya Philosophy. The three base qualities of nature – rajas, sattva, tamas – activity, balance, inactivity.
In the cosmos
Rajas – Brahma, the creator.
Sattva – Vishnu, the sustainer.
Tamas – Shiva, the die and become.
Nature – volcano, sunlight, rock.
Food – coffee, milk, alcohol.
Life – waking up, being awake, sleeping.