A Sivananda Class includes opening & closing relaxations, pranayama breathing exercises, and warmups before starting asana practice. The 12 asanas are followed in a specific order with relaxations to augment or counterbalance the preceding one. The objective is to bend, stretch and twist the spine from top to bottom. The sequence can be modified to accommodate either physical ability or time restraints. The sequence can be shortened into a 30-minute routine, or extended to three hours.