Nadi

Energy channel through which prana flows. It is said there are 72,000 nadis in the subtle body.

The three main nadis are:

• Ida — left channel, lunar energy, cooling
• Pingala — right channel, solar energy, heating
• Sushumna — central channel, activated when ida and pingala are balanced

Hatha Yoga seeks to purify the nadis and balance ida/pingala to activate sushumna.