It is a fundamental technique, used for increasing the sexual energy and for conducing it to the superior levels of our being: will, affection, intuition, mental and spiritual level. It stimulates the will, the courage, self-confidence; it gives you lucidity and calmness.
Here are the preliminary conditions of this proceeding:
A. It is compulsory to practice this technique when you are empty-stomached. So don’t eat before doing Uddiyana Bandha at least 2-3 hours.
B. In order to let the diaphragm to go up, the lungs have to be as empty as possible and to keep them like this during the entire abdominal retraction.
C. The abdominal belt has to be completely relaxed and passive. So the abdominal muscles do not work at all during the entire exercise.