There are many paths of yoga for attaining clarity of mind. Raja Yoga is one of the paths that focuses on meditation and contemplation. Raja means king, and king is always in a state of enlightenment. The pursha (Man), or the king, is always hidden by the workings of the mind. It is avidya which conceals our pursha, and many of us are unaware of its existence. When this process is reversed, and mind becomes master of the senses, we find clarity of the mind and our pursha takes its rightful place. In the yoga sutra, it says that when there is no more restlessness in the mind, pursha will unfold and see. That is Raja Yoga.