The discussion led me to looking for a picture for our flyer. I found two gems in my files. The above is where the different seeds sound in the Gayatri Mantra emanate from the subtle body. If you don't know the Gayatri then this may not make a lot of sense. They are just a bunch of different syllables floating around. However, if you know the chant then you can look at the picture and follow the path of sound.
Bhuh bhuvah svah
Tat savitur varenyam
Bhargo devasya dhimahi
Then I found this gorgeous drawing by my Sanskrit teacher's teacher and guru, Dr. Ramamurti Mishra, known to many as Sri Brahmananda Sarasvati, which I believe is inspired by a drawing from an ancient text. It is a drawing of the subtle body with the major chakras and nadis. In the drawing, the nadis seem to flow outside of and around the body but they are actually all contained within the body. The different nadis and chakras respond and correspond to different frequencies which are designated by the Sanskrit writing on the chart. The writing in larger Sanskrit letters on the top right says "Pranayama" and underneath the drawing (not shown) it says, "The cosmic state of meditation of I-AM." Thus, we can infer from this that control of the breath, pranayama, will lead us to the perfected state- or to the awareness of our own perfection. Even in a simple black and white drawing we can see how the subtle body is illuminated and vibrating at a very high frequency.