I did. My curiosity lead me to do some research…
“What is the relationship between the diaphragm, the psoas and the 12th dorsal vertebrae? Why is it important in yoga?” ~ Raquel
The psoas and diaphragm muscles are intimetely linked to one another, as one starts where the other ends. These two muscles meet on the anterior portion of the 12th dorsal vertebrae, right behind the peritoneum in the abdominal cavity.*
In this context, the 12th rib is a landmark that is easy to locate in one’s body: just draw a horizontal line from the inferior tip of your sternum (xyfoid process) all the way around to your spine. Yous should land just above your 12th dorsal vertebrae. Now that you know where that landmark is, you can also access -via your imagination- the back portion of your diaphragm, where it meets the psoas.
Many yoga teachers use the language of anatomy to direct their student’s attention inwards (pratyahara). If you are familiar with this language, you can follow your teacher’s instructions and place your attention wherever instructed. The attention required to do that fosters a meditative state in which you are totally present, here and now, aware of your body and listening to the sensations that arise. This is yoga!
*I made this video to help you see and understand the relationship between psoas, diaphragm and 12th dorsal vertebrae. I hope you like it.
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