« There are ways of communicating directly with one’s solar plexus and getting it to give orders for the solution of certain problems. This is something that will be studied in the future.
The very best way is to live a pure, sensible, luminous life. Your way of life will affect your plexus and make it freer, releasing it from all the constraints that hamper it.
A bleak, gloomy face without a glimmer of light in it is a sure sign that the person’s solar plexus is not functioning as it should.
However diligently you watch the sunrise or meditate or do various exercises, none of these things will really do you any good until your solar plexus starts to show signs of life, and you begin to feel that your consciousness has at last reached even to your bowels.
You can’t understand until you have lived through the experience, so there’s no point in my trying to explain. You have to work, work to change your life and live harmoniously. That is the only way to arouse your subtle centres to activity, because they know only one law: the law of harmony.
Omraam Mikhael Aivanhov,
Man’s Subtle Bodies and Centres, Izvor 219