One of the popular and scientific indian philosophy method. It's a Royal path of attaining self realization or enlightenment. Introduced by patanjali maharishi.
Raja yoga philosophy had spread to the west through swami Vivekananda’s teachings .Following the Yamas-Niyamas are
the foundation of Raja yoga . Those who practice yoga without following yama- niyamas they are just yoga asana practitioners and not a Yoga Practitioner Patanjali described eight limbs of yoga as:-