Yoga is an old discipline from India. It is both spiritual and physical.
Yoga uses breathing techniques, exercise and meditation. It claims to improve health and happiness.
Patanjali was a pioneer of classical yoga. He defined yoga as "the cessation
of the modification of the mind". (stopping changing the mind).
A person doing yoga will move from one posture (called asana) to another. For example, the "sun-salutation"
contains 12 poses of asanas, one after the other, and is said to help balance
body and soul. The
"sun-salutation" is popularly known as "Suryanamaskar".