People who have taken up hatha yoga as their way of life generally take up one asana for their life’s sadhana. This is known as Asana Siddhi. Asana Siddhi means one is able to sit in a particular way with absolute ease. For most people, whichever way they keep their body, it is not at ease. If you sit, it is not comfortable. If you stand, it is not comfortable. If you lie down, it is not comfortable. What the hell to do with this? If you give your body to the process of yoga, slowly the body becomes at ease. If you sit like this, it is absolutely at ease. It is not trying to be some other way.