The "Muscle of the soul"

Therapist and filmmaker Danielle Prohom Olson claims that by relaxing  your psoas, or what she terms “the muscle of the soul,” you can reconnect with the powerful energy of the Earth.
The psoas is the only muscle to connect the spine to the legs. The psoas is also linked to the diaphragm through fascia (connective tissue), impacting our fear reflex and breathing. This is due to the connection between the psoas and the reptilian brain, the most ancient inner part of the brain stem and spinal cord.
While you’re walking, a healthy psoas moves with ease, continuously massaging the spine as well as the organs, blood vessels, and nerves of the trunk. This process promotes the flow of fluids throughout the body and creates the feeling of being grounded and centered.

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