Bhagavad Gita -Swami Sivananda
Chapter-14 : THE YOGA OF THE DIVISION OF THE THREE GUNAS
Summary of Fourteenth Discourse
Knowledge of the three cosmic qualities or Gunas, namely, Sattwa, Rajas and Tamas is now given through this discourse. The knowledge of these three Gunas, which hold the entire universe and all creatures under their sway, is of vital importance to each and everyone for their progress and happiness in life. Without this knowledge one will be forever bound by sorrow. In this knowledge we have the secret of success in worldly life as well as in spiritual life. Therefore, one should acquire this precious knowledge.
Lord Krishna reveals that these three qualities compose the Cosmic Nature. This Cosmic Nature is the primal source and origin of the entire creation and all things in it. Hence all things created are subject to their influence and irresistible power. The individual soul also is bound to the body by these three qualities present in Cosmic Nature. The Supreme Being brings about creation through the help of His Prakriti (Nature) endowed with these threefold qualities.
The highest of the three qualities is Sattwa. It is pure. It brings about happiness, wisdom and also illumination. The second quality of Rajas gives rise to passion manifested by intense attachment and greed. It causes sorrow and suffering. The third, termed Tamas, is the worst of all. It arises due to ignorance and results in darkness, lethargy and delusion.