INDIA - Yoga Master, Yogi

The word yoga means "union" in Sanskrit, the language of ancient India where yoga originated. We can think of the union occurring between mind, body and spirit. There are four main paths of Yoga - Karma Yoga, Bhakti Yoga, Jnana Yoga and Raja Yoga. Each is suited to a different temperament or approach to life. All the paths lead ultimately to the same destination - to union with Brahman or Creator - and the lessons of each of them need to be integrated if true wisdom is to be attained. Karma Yoga is the Yoga of Action, Bhakti Yoga is The Path of Divine Love, Jnana Yoga is the Yoga of Knowledge or Wisdom and Raja Yoga is the Science of Physical and Mental Control. Raja Yoga is also called Ashtanga Yoga.

http://sivananda.org/teachings/philosophy/fourpaths.html

Asana is only one of the eight so-called "limbs" or types of Raja yoga, What is commonly referred to by most people today as "yoga" can be described by the Sanskrit word asana, which refers to the practice of physical postures or poses. Today the words asana and yoga have become almost synonymous.

http://yoga.about.com/od/beginningyoga/a/whatisyoga.htm