Most of us are accustomed to looking outside of ourselves for fulfillment. We are living in a world that conditions us to believe that outer attainments can give us what we want. Yet again and again our experiences show us that nothing external can completely fulfill the deep longing within for "something more." Most of the time, however, we find ourselves striving toward that which always seems to lie just beyond our reach. We are caught up in doing rather than being, in action rather than awareness. It is hard for us to picture a state of complete calmness and repose in which thoughts and feelings cease to dance in perpetual motion. Yet it is through such a state of quietude that we can touch a level of joy and understanding impossible to achieve otherwise.
It is said in the Bible: "Be still and know that I am God." In these few words lies the key to the science of Yoga. This ancient spiritual science offers a direct means of stilling the natural turbulence of thoughts and restlessness of body that prevent us from knowing what we really are.
Ordinarily our awareness and energies are directed outward, to the things of this world, which we perceive through the limited instruments of our five senses. Because human reason has to rely upon the partial and often deceptive data supplied by the physical senses, we must learn to tap deeper and more subtle levels of awareness if we would solve the enigmas of life — Who am I? Why am I here? How do I realize Truth?
Yoga is a simple process of reversing the ordinary outward flow of energy and consciousness so that the mind becomes a dynamic center of direct perception no longer dependent upon the fallible senses but capable of actually experiencing Truth.
By practicing the step-by-step methods of Yoga taking nothing for granted on emotional grounds or through blind faith we come to know our oneness with the Infinite Intelligence, Power, and Joy which gives life to all and which is the essence of our own Self.
In past centuries many of the higher techniques of Yoga were little understood or practiced, owing to mankind's limited knowledge of the forces that run the universe. But today scientific investigation is rapidly changing the way we view ourselves and the world. The traditional materialistic conception of life has vanished with the discovery that matter and energy are essentially one: every existing substance can be reduced to a pattern or form of energy, which interacts and interconnects with other forms. Some of today's most celebrated physicists go a step further, identifying consciousness as the fundamental ground of all being. Thus modern science is confirming the ancient principles of Yoga, which proclaim that unity pervades the universe.
The word yoga itself means "union": of the individual consciousness or soul with the Universal Consciousness or Spirit. Though many people think of yoga only as physical exercises — the asanas or postures that have gained widespread popularity in recent decades — these are actually only the most superficial aspect of this profound science of unfolding the infinite potentials of the human mind and soul.