The anupreksha of uncleanliness means the contemplation of the body's essential foulness. The foulness is there - it is true. The description of the body, whatever we are told to effect detachment with the body, is not wrong, but it is not the whole truth either. It is a view from one angle. The error lies in that our conception regarding the body has become unreal, false. There is another way of looking at the body. The manifestation of energy, consciousness and bliss also takes place through the medium of the body. There are so many centres in the body, so many switchboards, from which fountains of energy explode, and the rays of consciousness shoot forth. When the cover is removed, the inner wealth manifests itself. And it is the body alone that can become the medium of all this efflorescence. Without knowing the secrets of the body, without the knowledge of the sources of energy, no manifestation can take place.
The people, who have studied the body deeply, have progressed very much in the field of therapy and in the field of sadhana. The systems of treatment - acupuncture and acupressure - have their basis in vital power in the body. A stream of vitality is flowing throughout our body. We may call it the stream of energy or the current of bioelectricity, biological electricity; it hardly matters. This current is flowing throughout the body. If we look at the subtle photographs of the body, we shall find the whole body held together by certain rays, which run straight from foot to head. All these are the currents of vitality. We generally understand that the whole process, the entire cycle of activity is going on the basis of blood. Yet, it is not the fundamental source. The bones may be sturdy, the muscles may be functioning all right, the circulation of the blood may be regular, but if the current of vital breath dries up, all activity would stop, everything would come to an end. The bones will work no more, the muscles would start contracting, and the circulation of the blood will also stop. The fundamental source of all these activities is vital breath. It is vital energy, which makes everything run smoothly. As this vital power languishes, all other powers of the body correspondingly lapse. Also, with the regular flow of vital energy, all other powers continue to function well. Vital energy is the fundamental source.
This is what is sought to be done through the technique of acupressure. Particular centres of the body are each pressed so as to make the vital energy flow uninterruptedly throughout the body. Those well versed in this technique know where to apply pressure and how. There is no end to the body's mysteries. There are in it hundreds of centres, points, hundreds of electromagnetic regions. By developing these centres, a man can extend his knowledge, develop his memory and will power, increase his power and bliss and can solve many an unsolved riddle.