I was reading through one of my favourite books by teh Dalai Lama (a book I have read dozens of times), and I came across something interesting.
"Generally speaking, when we try to investigate our mind through introspection, we find that it tends to be dominated either by discursive thoughts or by feelings and sensations. So let us try to examine how feelings and discursive thoughts occur within the mind.
Feelings, of course, can be considered in relation to two different dimensions of reality.. We can speak about them purely at the physical level, as sensations, but when we try to understand feelings in terms of mental consciousness the issue is far more complex. And although we naturally accept that there must be connections between the consciousness and the nervous system of the body, we must somehow be able to account for deeper levels of feeling as well, or what we could call tones of experience.
I would like to point out that although very little research has been carried out in this area, and despite the fact that what little exists is still at a rudimentary stage, experiments done on meditators point to a phenomenon which may be difficult to account for within the current scientific paradigm. These experiments have shown that without any voluntary physical change in the body, and without any physical movement on the part of the individual, a person can effect his or her physiological state simply by using the power of the mind through a focused, single-pointed state. The physiological changes that take place are difficult to explain according to current assumptions about human physiology."
Kind of makes you want to go and get the cushion out