Bio-electricity

The body consists of 5 basic elements viz
Water
Earth
Fire
Air
Space

All these are controlled by the bio-electricity. The positive charge of the bio-electricity is known as "chi" / "chit" and negative charge is known as "chen". This flowing of the charge is called "chetna", its present in the body from birth till death. This can be seen as a white dazzling light between the two eyes in the middle of the forehead when the eyes are closed and the person is in deep meditation.
The chetna flows from the tips of the hands to the head and then to the body and out through the toes of the appropriate hand. This is the reason why people in India take the blessings of the elders by touching their toes (where the chetna flows out of the body) with their fingers (where the chetna starts to flow). If for any reason the chetna doesn't reach any part of the body then there is malfunctioning in that part or pain. So if the current is resumed and send properly the pain would go away and the disease would be cured. Thus acupressure teaches us how to use the build in mechanism of the body of sending the chetna to the desired areas and thus cure them.