Yog means union. Union with a supreme power which is the source of creation, perfection and destruction. Union with the supreme intellect and the guiding force behind the perfect mechanism of the universe. Yoga is merging oneself with this force that guides the human being to a state of total bliss. A human being is a small universe in itself. When the consciousness of this small universe unites with the energy prevailing in the vast canopy of the universe the union is complete and the light of wisdom starts flowing in the human body. The light contains everything a human needs to evolve. A human is a part of nature and constantly striving for perfection. This is the natural course of evolution because god is the personification of ultimate perfection.