Yoga is one among hundreds of yogam. Yoga means Union, the name represents some Principles, Postures and Breathing Techniques. There are four main yogams in this branch of YOGA: 1. Rajayogam, 2. Karmayogam, 3. Bhakthiyogam and 4. Njyanayogam. Main yogams consist too many branches some of them are Kundaleeni Yogam, Dhyanayogam, Thantrayogam, Mantrayogam, Swarayogam, Japayogamm etc. But all are connected each other and difficult to understand one by one.