From the relatively recent discoveries in neuroscience due to technological advancement, these networks can be observed with high precision. How ancient Indian texts could draw something so similarly resembling our nerves connections without access to technologies that we have now, remains a mystery.
With this, on a neurological level, Ida (left channel) represents the Sympathetic Nervous System – the fight-or-flight controller (the gas pedal of the nervous system). Ida changes its place when it reaches the head, connecting to the right part of the brain (our creative side). Pingala, on the other hand, represents the Parasympathetic Nervous System – the rest-and-digest mode controller. Pingala changes its side in the brain, connecting to the left hemisphere, the one which is responsible for your logic. Shushumna Ida runs where your spinal cord is and represents the Central Nervous System.