Getting acquainted with the physical part of yoga which contributes to the control of emotions and deep concentration — ASANAS — is an important component of classical yoga.
In Sanskrit the definition of asana is: "Sthira sukham asanam" — "posture that creates steadiness and comfort – that is the asana". Asanas are not always so comfortable at first, but their aim is to enable you to maintain a comfortable state of happiness that is ideal for meditation practice .
Asanas help control the mind, emotions and desires. If you can concentrate and direct all your inner life force into a peaceful direction – you can achieve great results.