Hatha yoga is designed according to human anatomy.
Hat means sun and ha means moon. It is the balance of sun and moon.
In the total energy of the universe there are two types of energy. The light and the dark.
In Hatha yoga, instead of bright and dark, it is so difficult to explain. So they choose to use sun and moon. But originally it means the balance of light and dark.
There are 72.000 nadis in the body. Each nadi is an energy channel that comes from the root chakra.
The cooling chamber is the moon and the hot chamber is the sun.
Edi nadi – left nostril
Pimyala nadi – right nostril
Shusuma nadi – is the nadi between edi and pimyala
Why does the left side of our body represent the moon?
Because the eda nadi represents the moon and this nadi ends at the left nostril. That is why it represents the left side.