The postures are very precise and you are well guided through them by your teacher.  Teachers are trained to make appropriate adjustments for different physiques and for people with specific problems.  The classes can be hard work, as the poses involve intense stretching; however you will leave the class feeling lighter and calmer.  The immediate benefits are greater flexibility and strength, and better physical strength.  As you continue your practice psychological and spiritual benefits begin to appear.

Classes generally start with simple poses and gradually move towards more advanced poses, ending with a period of relaxation and sometimes incorporating breathing techniques.