Rajayogam is the leader part, it explains the way to other three parts and theology. The person will be able to understand the other three main yogams with its subdivision. Here the person will be power full and peace full so this person never be disturbed by any external force or energy (it may be the hurting of others or accident) and he will be able to attain the benefit of Dharana and meditation technique. Then the person will be able to understand the other three main yogams with its subdivision. Here the person will be power full and peace full so this person never be disturbed by any external force or energy (it may be the hurting of others or accident) and he will be able to attain the benefit of Dharana and meditation technique.