Relaxation involves letting all the stress and tension in the body and mind drain off us, till we hang like a limp, wet rag of cloth. Or a reclining cat that is the perfect example of relaxation.
Why is Stress caused? Research by authorities such as Dr. Hans Selye has shown that stress is caused when there are uncontrolled thoughts in the mind.
It is also true that it is not possible to control the thoughts as you would turn a radio knob off and on. But it is possible to befriend the mind .And that is the only way of controlling it.
It is similar to dealing with an unruly child. If we tell it not to do something, it will immediately go and do it. But if we give it loving attention and remain calm and watchful the child will eventually come to our side. We should not force it to do anything. Same is the case with the mind.