In the ancient teachings of Yoga, the path begins with the practice of restraints, known as yamas. These are non-violence, truthfulness, non-stealing, chastity, and non-possessiveness. They are not limited by one’s social class, location, time, or circumstance; rather, they are universal vows that apply to all, everywhere and always. Alongside these restraints are the observances, called niyamas: purity, contentment, austerity, self-study, and dedication to the Lord. Together, yama and niyama form the foundation of yoga practice. When negative thoughts arise and disturb the mind, the teachings guide one to cultivate their opposites. Thoughts rooted in violence—whether committed, encouraged, or merely approved—spring from greed, anger, or delusion. These thoughts, whether mild or intense, lead only to endless suffering and ignorance. Therefore, one should consciously nurture their opposites. As one becomes firmly established in non-violence, all hostility ceases in their presence. With unwavering truthfulness, actions bear their rightful fruit. When non-stealing is perfected, all precious things come naturally. Through chastity, great vigor is gained. And when non-possessiveness is steadfast, knowledge of the true nature and cause of birth arises. From purity, a distaste for one’s own body and a tendency to avoid contact with others emerges. This leads to clarity of mind, cheerfulness, one-pointedness, mastery over the senses, and readiness for self-realization. Contentment brings unsurpassed happiness. Through austerity, impurities are destroyed, resulting in perfection of body and senses. Self-study, especially of sacred texts, brings union with one’s chosen deity. Dedication to the Lord leads to perfection in samadhi, the highest meditative absorption. With these foundations, one turns to posture. The ideal posture is steady and comfortable, achieved by relaxing effort and absorbing oneself in the infinite. In this state, one is undisturbed by the pairs of opposites—such as heat and cold, pleasure and pain. Once posture is established, the regulation of breath—pranayama—begins. The flow of inhalation and exhalation is observed carefully, with attention to place, time, and number, gradually becoming prolonged and subtle. There is a fourth kind of pranayama that transcends both external and internal objects. When this is attained, the covering over the inner light diminishes, and the mind becomes fit for concentration. Next comes withdrawal of the senses—pratyahara. In this practice, the senses imitate the nature of the mind, refraining from engagement with their own objects. This brings supreme mastery over the senses. The journey continues with concentration—dharana—which is the binding of the mind to a single place. When awareness flows uninterruptedly toward that object, it is meditation—dhyana. In the state where only the object is illuminated and the sense of self is absent, samadhi is attained. When these three—concentration, meditation, and samadhi—are applied together to one point, it is called samyama. Mastery of samyama brings the light of insight, which can be applied to various levels of understanding. These three practices are more internal than the ones that came before, yet even they are external when compared to the highest, seedless samadhi. Within the mind, there is a transformation: impressions of distraction and restraint vie for dominance, and the mind connects to moments of restraint. This is the transformation of restraint. The flow of the mind becomes tranquil, shaped by the impression. The fading and arising of focus on all objects or one object is the transformation of samadhi. When the impressions of tranquility and arising are equal, the mind attains the transformation of one-pointedness. Through these processes, the transformations of characteristics, signs, and states in the elements and senses are explained. The substratum—the underlying reality—follows the characteristics that are tranquil, arising, or unmanifest. Thus, step by step, the teachings of Yoga guide the aspirant from the outermost conduct to the deepest realization, illuminating the path to mastery over body, mind, and spirit.