By the period 500 B.C. man had already climbed the ladder of Evolution to a great extent.Only with his feet & hand-made boats, he had reached to every suitable corner of Earth.
Science was still very far from the picture.Man was still unable to control the natural forces outside & use them to serve himself & his community.We can not say exactly,but perhaps this was the time when Yoga was born in India.During this period, Indian yogis turned their attention to control the forces of nature within the body.
The yogis were aware of the very fact that soul & body are two different things.Although they are different,but they pretend to be one.The string which ties the soul to the body is Breath.
Breath is not just the exchange of Carbon dioxide & oxygen.For different levels of thought & emotion go through,our breath takes on different patterns.You may be either angry,happy,peaceful or sad.During the change of emotions,our breath goes through subtle change.
The founder of ‘Isha Foundation’ (which works for the care of HIV affected people) Sadhguru Vasudev once said, “Whichever way you breathe,that is the way you think.Whichever way you think,that is the way you breathe.”
Hence (under an expert guidance),breath can be used as a tool to do many things with body & mind.In Patanjali sutra of Yoga,it is stated that Mind can be calmed by expulsion & retention of breath.Modern Science agrees that method of respiration affects the whole organism.
Mental disturbances are accompanied by irregular breathing-rapid,shallow & uncontrolled.There are two causes for activities of Mind-
Of these,the destruction of one leads to the destruction of both.This is one of the most important knowledge ancient Indians have given to the world.And even today,it remains a mystery for many of us.