When you have decided to start with your yoga practice, it is imperative for you to learn how to perform a pose properly. Thus it is advisable for you to find a right teacher who will guide you in the correct manner of performing these poses. Since yogic exercises involve the static and isometric contraction of the muscles, where the muscles are held in a state of tension without causing the corresponding body part to move; it is important to note that the stretching or contraction of the muscles should not be done abruptly or suddenly. You should endeavour to reach the final pose as slowly as you can, so that there is a steady rise in the tension of the muscles. Always reach the final posture slowly through the intermediate postures. Master all these postures slowly one by one. The movement of each body part should be done under complete control of the muscles exercised. This is achieved only after practicing for a certain period of time. There should be no jerks or violent movements. Each step should be executed easily, smoothly and gracefully. Initially, when you start learning the yoga, there is a tendency to use muscles not concerned with the specified movement. But over a period of time with due practice, you can eliminate the unproductive muscular activity. As you progress, you'll learn to use only the specified muscles for contraction or stretching while the other muscles are kept relaxed. Avoid rushing into the final position of any posture, unless you have thoroughly mastered the intermediate stages. Always proceed as far as you comfortably can and hold this pose for some time. This will train the required muscles in a few days and thus you can get smoothness and grace. Take caution not to overwork any muscles. Do not control or restrict your breathing. If you are sick or absent from your practice for a long time, start slowly and reach the previous level only after some time. At the end of the session, you should feel fresh and relaxed. You must experience the lightness and exhilaration at the end of every session. You can adjust the duration of various techniques according to your capacity and there should be no exhaustion or tension. Following all these practices will ensure you get a correct yoga session.