There are over a hundred different schools of Yoga. Some of the most well known are described below:
Hatha Yoga: The physical movements and postures, plus breathing techniques. This is what most people associate with Yoga practice.
Raja Yoga: Called the “royal road,” because it incorporates exercise and breathing practice with meditation and study, producing a well-rounded individual.
Jnana Yoga: The path of wisdom; considered the most difficult path.
Bhakti Yoga: The practice of extreme devotion in one-pointed concentration upon one’s concept of God.
Karma Yoga: All movement, all work of any kind is done with the mind centered on a personal concept of God.
Tantra Yoga: A way of showing the unseen consciousness in form through specific words, diagrams, and movements. One of the diagrams that is used to show the joining of the physical and spiritual bodies is two triangles superimposed upon one another. The downward-pointing triangle represents the physical body, or the female aspect having to do with work, action, and movement; the upward-pointing triangle represents the spiritual body of support, energy, and vastness.
Kashmir Shaivism: This Yoga system states that everything in the universe has both male and female qualities. In Kashmir Shaivism, these male and female principles form an equal partnership, so interdependent that they cannot be separated. The attraction between them produces the ultimate union of opposites, creating the immense complexity of the universe that we enjoy and celebrate. Unlike other philosophies, Kashmir Shaivism is based in emotion rather than intellect. In fact, Shaivism says that intellectual understanding by itself will never lead us to the realization of the summit of Yoga. The system's great exponents teach that the egotistical intellect blocks our ability to fully experience our individual power.