Aloha Iam2 et. al.,
The forming and moving of yin & yang exercises/meditations are very powerful (as Heartbeat attested). There is a lot going on and being worked on. The column is more than just the main front and back channels. We want to attach specific meaning of something to what we already know to help get our "brain around it". Consider that perhaps within the column, the front and back channels are joined as one and that the work done here allows for this, the chakras, one's life line and more than I can shake a stick at (or even realize), to heal and strengthen.
The following is an tweak to the column of light in the moving of Yin and Yang exercise that master Lin has mentioned a few times over the last couple years.
In the beginning, see the energy column narrow as a pencil. As you meditate, the column may grow wider. Let it grow to the size it will be. It may become as wide as the body, as large as the room, or even as big as the universe.
When ending the exercise, visualize the column of light gradually returning to the width of a pencil -brighter and stronger than before.
Of course women finish with the left hand over right, and men right over left in front of the lower dantain. Bring all the energy to collect there. Now continue with the next active exercise or end with the Harvesting of Qi.
One can look at and remember the image of a candle flame or a vertical florescent bulb, bringing the image into their body to help visualize the column of light.
Much Love, Shawn
