It helps to balance the energy throughout mind and body and gives the pleasant sense of well-being. It is rightly the 'Raja' (king) of yoga. It focuses on scientific aspects of personality thereby explaining the individual growth and differences through the science of chakras. Different types of meditations are just a small subset of the holistic 'Raja Yoga'. Raja yoga usually refers to the system of yoga that is described in the Yoga Sutras of Patanjali. In this ancient text Patanjali describes in his eight limbed yoga which are well known Raja yoga.
Raja Yoga is a comprehensive yoga system which deals with the refinement of human behaviour and personality through the practice of the yamas (restraint) and niyamas (disciplines); attainment of physical health and vitality through asanas (postures) and pranayamas (pranic breathing techniques); management of mental and emotional conflicts and development of awareness and concentration through pratyahara (sensory withdrawal) and dharana (concentration); and development of the creative aspect of consciousness for transcendental awareness through dhyana (meditation) and samadhi (absorption in the universal identity).