Through the Asanas (postures) you can control the physical pain; through
Pranayama (breathing) emotional suffering and through meditation can
reach true understanding of one's own.
Yoga is a State that is only achieved through direct experience.
It is a way valid to strengthen the mind and lead it easily towards concentration, to relax, to preserve the physical and mental health, prevent and even cure disease.
The word Yoga means to unite, join, and leads to the achievement of
the individual, the Union of man with nature and everything around him.