Pranayama
Yoga is invigoration in relaxation. Freedom in routine. Confidence through self control. Energy within and energy without. -Ymber Delecto
Pranayama is a Sanskrit word meaning "lengthening of the prana or breath". The word is composed of two Sanskrit words, Prāna, life force, or vital energy, particularly, the breath, and "āyāma", to lengthen or extend. It is often translated as control of the life force (prana). When used as a technical term in yoga, it is often translated more specifically as "breath control". Literal translations include A. A. Macdonell's "suspension of breath" and I. K. Taimni's "regulation of breath".
The Qigong practice in China may also have its roots in Pranayama.
Pranayama is the fourth 'limb' of the eight limbs of Raja Yoga mentioned in verse 2.29 in the Yoga Sutras of Patanjali. Patanjali discusses his specific approach to pranayama in verses 2.49 through 2.51, and devotes verses 2.52 and 2.53 to explaining the benefits of the practice. Patanjali refers to pranayama as the control of life force that comes as a result of practicing the various breathing techniques, rather than the numerous breathing exercises themselves.
Many yoga teachers advise that pranayama should be part of an overall practice that includes the other limbs of Patanjali's Raja Yoga teachings, especially Yama, Niyama, and Asana.
Several researchers have reported that pranayama techniques are beneficial in treating a range of stress related disorders, improving autonomic functions, relieving symptoms of asthma, and reducing signs of oxidative stress. Practitioners report that the practice of pranayama develops a steady mind, strong will-power, and sound judgement, and also claim that sustained pranayama practice extends life and enhances perception.
Many yoga teachers recommend that pranayama techniques be practiced with care, and that advanced pranayama techniques should be practiced under the guidance of a teacher. These cautions are also made in traditional Hindu literature
