The line between the heel and thumb at the inside of your foot is a projection of your spine.
For the beginning you will need to find the “spine” on your foot.
Sit on the floor in Turkish style and grab your foot.
The line between the heel and thumb at the inside of your foot is a projection of your spine. This line you should visually split it in half – the middle of your back, the chest part of your spine and the neck part of your spine. The lower part of the back is closer to the heel and the upper to the thumb.
With your hand thumb press hard this line in the direction of the heel. If you have some problems with you back you will find their reflection your feet. You may feel them as painful and thick points and with its massage you have a direct influence on your spine.